title stringlengths 1 105 | content stringlengths 5 58.1k |
|---|---|
Internet security | protocols used alone combination.basic components includesecurity protocols ah espsecurity association policy management traffic processingmanual automatic key management internet key exchange ikealgorithms authentication encryptionthe algorithm allows sets work independently without affecting parts implementation.ipse... |
Internet security | security token online sites offer customers ability use sixdigit code randomly changes every – seconds physical security token.token builtin computations manipulates numbers based current time.means every thirty seconds certain array numbers validate access.website made aware devices serial number knows computation cor... |
Internet security | electronic mail security background email messages composed delivered stored multiple step process starts messages composition.message sent transformed standard format according rfc .using network connection mail client sends senders identity recipient list message content server.server receives information forwards me... |
Internet security | email messages protected using cryptography various ways followingdigitally signing message ensure integrity confirm senders identity.encrypting message body email message ensure confidentiality.encrypting communications mail servers protect confidentiality message body message header.the first two methods message sign... |
Internet security | method outputs mac value decrypted receiver using secret key used sender.message authentication code protects messages data integrity well authenticity.firewalls computer firewall controls access single computer.network firewall controls access entire network.firewall security device — computer hardware software — filt... |
Internet security | generally consists gateways filters.firewalls also screen network traffic block traffic deemed unauthorized.web security firewalls restrict incoming outgoing network packets.authorized traffic allowed pass it.firewalls create checkpoints networks computers. |
Internet security | firewalls block traffic based ip source tcp port number.also serve platform ipsec.using tunnel mode firewalls implement vpns.firewalls also limit network exposure hiding internal network public internet.types firewall packet filter packet filter processes network traffic packetbypacket basis. |
Internet security | main job filter traffic remote ip host router needed connect internal network internet.router known screening router screens packets leaving entering network.stateful packet inspection stateful firewall circuitlevel gateway proxy server operates network level open systems interconnect osi model statically defines traff... |
Internet security | applicationlevel gateway applicationlevel firewall third generation firewall proxy server operates top osi model ip suite application level.network packet forwarded connection established using known protocol.applicationlevel gateways notable analyzing entire messages rather individual packets.browser choice web browse... |
Internet security | protections antivirus antivirus software protect programmable device detecting eliminating malware.variety techniques used signaturebased heuristics rootkit realtime.password managers password manager software application creates stores provides passwords applications.password managers encrypt passwords.user needs reme... |
Internet security | security suites security suites first offered sale mcafee contain firewalls antivirus antispyware components.also offer theft protection portable storage device safety check private internet browsing cloud antispam file shredder make securityrelated decisions answering popup windows several free charge.history national... |
Information security | compatible various switching networks capable resetting electronically one irreversible nonlinear algorithms directed card data information.atalla introduced first network security processor nsp.see also references external links national institute standards technology nist.gov information technology portal links compu... |
Information security | paperwork intangible e.g.knowledge.information securitys primary focus balanced protection confidentiality integrity availability data also known cia triad maintaining focus efficient policy implementation without hampering organization productivity.largely achieved structured risk management process involves identifyi... |
Information security | standardization may driven wide variety laws regulations affect data accessed processed stored transferred destroyed.however implementation standards guidance within entity may limited effect culture continual improvement isnt adopted.definition various definitions information security suggested summarized different so... |
Information security | cnss ensures authorized users confidentiality access accurate complete information integrity required availability.isaca information security process protecting intellectual property organisation.pipkin ...information security risk management discipline whose job manage cost information risk business.mcdermott geer wel... |
Information security | venter eloff information security multidisciplinary area study professional activity concerned development implementation security mechanisms available types technical organizational humanoriented legal order keep information locations within outside organizations perimeter consequently information systems information ... |
Information security | overview core information security information assurance act maintaining confidentiality integrity availability cia information ensuring information compromised way critical issues arise.issues include limited natural disasters computerserver malfunction physical theft.paperbased business operations still prevalent req... |
Information security | computer device processor memory.devices range nonnetworked standalone devices simple calculators networked mobile computing devices smartphones tablet computers.security specialists almost always found major enterpriseestablishment due nature value data within larger businesses.responsible keeping technology within co... |
Information security | information security professionals stable employment.percent professionals change employer employment period year number professionals projected continuously grow percent annually .threats information security threats come many different forms.common threats today software attacks theft intellectual property theft iden... |
Information security | viruses worms phishing attacks trojan horses common examples software attacks.theft intellectual property also extensive issue many businesses information technology field.identity theft attempt act someone else usually obtain persons personal information take advantage access vital information social engineering.theft... |
Information security | information extortion consists theft companys property information attempt receive payment exchange returning information property back owner ransomware.many ways help protect attacks one functional precautions conduct periodical user awareness.number one threat organisation users internal employees also called insider... |
Information security | responses threats possible responses security threat risk arereducemitigate – implement safeguards countermeasures eliminate vulnerabilities block threatsassigntransfer – place cost threat onto another entity organization purchasing insurance outsourcingaccept – evaluate cost countermeasure outweighs possible cost loss... |
Information security | postal services expanded governments created official organizations intercept decipher read reseal letters e.g.u.k.s secret office founded .in midnineteenth century complex classification systems developed allow governments manage information according degree sensitivity.example british government codified extent publi... |
Information security | similar law passed india indian official secrets act associated british colonial era used crack newspapers opposed rajs policies.newer version passed extended matters confidential secret information governance.time first world war multitier classification systems used communicate information various fronts encouraged g... |
Information security | volume information shared allied countries second world war necessitated formal alignment classification systems procedural controls.arcane range markings evolved indicate could handle documents usually officers rather enlisted troops stored increasingly complex safes storage facilities developed.enigma machine employe... |
Information security | advanced research projects agency arpa united states department defense started researching feasibility networked system communication trade information within united states armed forces.arpanet project formulated dr. larry roberts would later evolve known internet.in important elements arpanet security found internet ... |
Information security | establishment transfer control protocolinternetwork protocol tcpip early enabled different types computers communicate.computers quickly became interconnected internet.the rapid growth widespread use electronic data processing electronic business conducted internet along numerous occurrences international terrorism fue... |
Information security | however debate continues whether cia triad sufficient address rapidly changing technology business requirements recommendations consider expanding intersections availability confidentiality well relationship security privacy.principles accountability sometimes proposed pointed issues nonrepudiation fit well within thre... |
Information security | merits parkerian hexad subject debate amongst security professionals.in open group published information security management standard oism.standard proposed operational definition key concepts security elements called security objectives related access control availability data quality compliance technical .dod softwar... |
Information security | similar privacy two words interchangeable.rather confidentiality component privacy implements protect data unauthorized viewers.examples confidentiality electronic data compromised include laptop theft password theft sensitive emails sent incorrect individuals.integrity security data integrity means maintaining assurin... |
Information security | thing referential integrity databases although viewed special case consistency understood classic acid model transaction processing.information security systems typically incorporate controls ensure integrity particular protecting kernel core functions deliberate accidental threats.multipurpose multiuser computer syste... |
Information security | means computing systems used store process information security controls used protect communication channels used access must functioning correctly.high availability systems aim remain available times preventing service disruptions due power outages hardware failures system upgrades.ensuring availability also involves ... |
Information security | executives oftentimes understand technical side information security look availability easy fix often requires collaboration many different organizational teams network operations development operations incident response policychange management.successful information security team involves many different key roles mesh... |
Information security | alleged sender could return demonstrate digital signature algorithm vulnerable flawed allege prove signing key compromised.fault violations may may lie sender assertions may may relieve sender liability assertion would invalidate claim signature necessarily proves authenticity integrity.sender may repudiate message aut... |
Information security | threat anything manmade act nature potential cause harm.likelihood threat use vulnerability cause harm creates risk.threat use vulnerability inflict harm impact.context information security impact loss availability integrity confidentiality possibly losses lost income loss life loss real property.the certified informat... |
Information security | must repeated indefinitely.business environment constantly changing new threats vulnerabilities emerge every day.second choice countermeasures controls used manage risks must strike balance productivity cost effectiveness countermeasure value informational asset protected.furthermore processes limitations security brea... |
Information security | possible identify risks possible eliminate risk.remaining risk called residual risk.a risk assessment carried team people knowledge specific areas business.membership team may vary time different parts business assessed.assessment may use subjective qualitative analysis based informed opinion reliable dollar figures hi... |
Information security | include people buildings hardware software data electronic print supplies.conduct threat assessment.include acts nature acts war accidents malicious acts originating inside outside organization.conduct vulnerability assessment vulnerability calculate probability exploited.evaluate policies procedures standards training... |
Information security | consider productivity cost effectiveness value asset.evaluate effectiveness control measures.ensure controls provide required cost effective protection without discernible loss productivity.for given risk management choose accept risk based upon relative low value asset relative low frequency occurrence relative low im... |
Information security | cases leadership may choose deny risk.security controls selecting implementing proper security controls initially help organization bring risk acceptable levels.control selection follow based risk assessment.controls vary nature fundamentally ways protecting confidentiality integrity availability information.isoiec def... |
Information security | organizations implement additional controls according requirement organization.isoiec offers guideline organizational information security standards.administrative administrative controls also called procedural controls consist approved written policies procedures standards guidelines.administrative controls form frame... |
Information security | laws regulations created government bodies also type administrative control inform business.industry sectors policies procedures standards guidelines must followed – payment card industry data security standard pci dss required visa mastercard example.examples administrative controls include corporate security policy p... |
Information security | passwords network hostbased firewalls network intrusion detection systems access control lists data encryption examples logical controls.an important logical control frequently overlooked principle least privilege requires individual program system process granted access privileges necessary perform task.blatant exampl... |
Information security | physical physical controls monitor control environment work place computing facilities.also monitor control access facilities include doors locks heating air conditioning smoke fire alarms fire suppression systems cameras barricades fencing security guards cable locks etc.separating network workplace functional areas a... |
Information security | defense depth information security must protect information throughout lifespan initial creation information final disposal information.information must protected motion rest.lifetime information may pass many different information processing systems many different parts information processing systems.many different wa... |
Information security | building layering overlapping security measures called defense depth.contrast metal chain famously strong weakest link defense depth strategy aims structure one defensive measure fail measures continue provide protection.recall earlier discussion administrative controls logical controls physical controls.three types co... |
Information security | perspectives equally valid provides valuable insight implementation good defense depth strategy.classification important aspect information security risk management recognizing value information defining appropriate procedures protection requirements information.information equal information requires degree protection.... |
Information security | next develop classification policy.policy describe different classification labels define criteria information assigned particular label list required security controls classification.some factors influence classification information assigned include much value information organization old information whether informati... |
Information security | access control access protected information must restricted people authorized access information.computer programs many cases computers process information must also authorized.requires mechanisms place control access protected information.sophistication access control mechanisms parity value information protected sens... |
Information security | identification identification assertion someone something is.person makes statement hello name john doe making claim are.however claim may may true.john doe granted access protected information necessary verify person claiming john doe really john doe.typically claim form username. |
Information security | entering username claiming person username belongs to.authentication authentication act verifying claim identity.john doe goes bank make withdrawal tells bank teller john doe claim identity.bank teller asks see photo id hands teller drivers license.bank teller checks license make sure john doe printed compares photogra... |
Information security | photo name match person teller authenticated john doe claimed be.similarly entering correct password user providing evidence heshe person username belongs to.there three different types information used authenticationsomething know things pin password mothers maiden namesomething drivers license magnetic swipe cardsome... |
Information security | authorization person program computer successfully identified authenticated must determined informational resources permitted access actions allowed perform run view create delete change.called authorization.authorization access information computing services begins administrative policies procedures.policies prescribe... |
Information security | different computing systems equipped different kinds access control mechanisms.may even offer choice different access control mechanisms.access control mechanism system offers based upon one three approaches access control may derived combination three approaches.the nondiscretionary approach consolidates access contro... |
Information security | mandatory access control approach access granted denied basing upon security classification assigned information resource.examples common access control mechanisms use today include rolebased access control available many advanced database management systems simple file permissions provided unix windows operating syste... |
Information security | even though two employees different departments topsecret clearance must needtoknow order information exchanged.within needtoknow principle network administrators grant employee least amount privilege prevent employees accessing supposed to.needtoknow helps enforce confidentialityintegrityavailability triad.needtoknow ... |
Information security | information encrypted rendered unusable transformed back original usable form authorized user possesses cryptographic key process decryption.cryptography used information security protect information unauthorized accidental disclosure information transit either electronically physically information storage.cryptography... |
Information security | software applications gnupg pgp used encrypt data files email.cryptography introduce security problems implemented correctly.cryptographic solutions need implemented using industryaccepted solutions undergone rigorous peer review independent experts cryptography.length strength encryption key also important considerati... |
Information security | must protected unauthorized disclosure destruction must available needed.public key infrastructure pki solutions address many problems surround key management.process terms reasonable prudent person due care due diligence used fields finance securities law many years.recent years terms found way fields computing inform... |
Information security | often described reasonable prudent person rule.prudent person takes due care ensure everything necessary done operate business sound business principles legal ethical manner.prudent person also diligent mindful attentive ongoing due care business.in field information security harrisoffers following definitions due care... |
Information security | second due diligence continual activities means people actually things monitor maintain protection mechanisms activities ongoing.organizations responsibility practicing duty care applying information security.duty care risk analysis standard docra provides principles practices evaluating risk.considers parties could af... |
Information security | security governance software engineering institute carnegie mellon university publication titled governing enterprise security ges implementation guide defines characteristics effective security governance.includean enterprisewide issueleaders accountableviewed business requirementriskbasedroles responsibilities segreg... |
Information security | every plan unique needs organization involve skill sets part team.example lawyer may included response plan help navigate legal implications data breach.as mentioned every plan unique plans include following preparation good preparation includes development incident response team irt.skills need used team would penetra... |
Information security | identification part incident response plan identifies security event.end user reports information admin notices irregularities investigation launched.incident log crucial part step.members team updating log ensure information flows fast possible.identified security breach occurred next step activated. |
Information security | containment phase irt works isolate areas breach took place limit scope security event.phase important preserve information forensically analyzed later process.containment could simple physically containing server room complex segmenting network allow spread virus.eradication threat identified removed affected systems.... |
Information security | events require step however important fully understand event moving step.help ensure threat completely removed.recovery stage systems restored back original operation.stage could include recovery data changing user access information updating firewall rules policies prevent breach future.without executing step system c... |
Information security | lessons learned step information gathered process used make future decisions security.step crucial ensure future events prevented.using information train admins critical process.step also used process information distributed entities experienced security event.change management change management formal process directin... |
Information security | includes alterations desktop computers network servers software.objectives change management reduce risks posed changes information processing environment improve stability reliability processing environment changes made.objective change management prevent hinder necessary changes implemented.any change information pro... |
Information security | change management tool managing risks introduced changes information processing environment.part change management process ensures changes implemented inopportune times may disrupt critical business processes interfere changes implemented.not every change needs managed.kinds changes part everyday routine information pr... |
Information security | critical first steps change management defining change communicating definition b defining scope change system.change management usually overseen change review board composed representatives key business areas security networking systems administrators database administration application developers desktop support help... |
Information security | request change received may undergo preliminary review determine requested change compatible organizations business model practices determine amount resources needed implement change.approve management runs business controls allocation resources therefore management must approve requests changes assign priority every c... |
Information security | communication give others opportunity remind change review board changes critical business activities might overlooked scheduling change.communication also serves make help desk users aware change occur.another responsibility change review board ensure scheduled changes properly communicated affected change otherwise i... |
Information security | documentation includes initial request change approval priority assigned implementation testing back plans results change review board critique datetime change implemented implemented whether change implemented successfully failed postponed.postchange review change review board hold postimplementation review changes.pa... |
Information security | business continuity business continuity management bcm concerns arrangements aiming protect organizations critical business functions interruption due incidents least minimize effects.bcm essential organization keep technology business line current threats continuation business usual.bcm included organizations risk ana... |
Information security | appropriate combination approaches including resilience e.g.engineering systems processes high availability avoiding preventing situations might interrupt business incident emergency management e.g.evacuating premises calling emergency services triagesituation assessment invoking recovery plans recovery e.g.rebuilding ... |
Information security | duplicating strengthening critical elements contracting service equipment supplierstesting e.g.business continuity exercises various types costs assurance levelsmanagement e.g.defining strategies setting objectives goals planning directing work allocating funds people resources prioritization relative activities team b... |
Information security | disaster recovery plan invoked soon disaster occurs lays steps necessary recover critical information communications technology ict infrastructure.disaster recovery planning includes establishing planning group performing risk assessment establishing priorities developing recovery strategies preparing inventories docum... |
Information security | members adopt national regulations standardize protection data privacy citizens throughout e.u.the computer misuse act act u.k. parliament making computer crime e.g.hacking criminal offense.act become model upon several countries including canada republic ireland drawn inspiration subsequently drafting information secu... |
Information security | generally schools must written permission parent eligible student order release information students education record.the federal financial institutions examination councils ffiec security guidelines auditors specifies requirements online banking security.the health insurance portability accountability act hipaa requir... |
Information security | pci dss multifaceted security standard includes requirements security management policies procedures network architecture software design critical protective measures.state security breach notification laws california many others require businesses nonprofits state institutions notify consumers unencrypted personal inf... |
Information security | cultural concepts help different segments organization work effectively work effectiveness towards information security within organization.way employees think feel security actions take big impact information security organizations.roer petric identify seven core dimensions information security culture organizationsat... |
Information security | information security culture analysis change authors commented never ending process cycle evaluation change maintenance.manage information security culture five steps taken preevaluation strategic planning operative planning implementation postevaluation.preevaluation identify awareness information security within empl... |
Information security | nist computer security divisiondevelops standards metrics tests validation programs well publishes standards guidelines increase secure planning implementation management operation.nist also custodian u.s. federal information processing standard publications fips.the internet society professional membership society org... |
Information security | institute developed iisp skills framework.framework describes range competencies expected information security information assurance professionals effective performance roles.developed collaboration private public sector organizations worldrenowned academics security leaders.the german federal office information securi... |
Information security | catalogs formerly known baseline protection manual.catalogs collection documents useful detecting combating securityrelevant weak points environment cluster.collection encompasses september pages introduction catalogs.itgrundschutz approach aligned isoiec x family.the european telecommunications standards institute sta... |
Communication protocol | protocol defines rules syntax semantics synchronization communication possible error recovery methods.protocols may implemented hardware software combination both.communicating systems use welldefined formats exchanging various messages.message exact meaning intended elicit response range possible responses predetermin... |
Communication protocol | reach agreement protocol may developed technical standard.programming language describes computations close analogy protocols programming languages protocols communication programming languages computations.alternate formulation states protocols communication algorithms computation.multiple protocols often describe dif... |
Communication protocol | itut handles telecommunication protocols formats public switched telephone network pstn.pstn internet converge standards also driven towards convergence.communicating systems history one first uses term protocol datacommutation context occurs memorandum entitled protocol use npl data communications network written roge... |
Communication protocol | rfc specification written cerf yogen dalal carl sunshine december still monolithic design time.the international networking working group agreed connectionless datagram standard presented ccit adopted itu arpanet.international research particularly work rémi després contributed development x. standard based virtual cir... |
Communication protocol | period late early engineers organizations nations became polarized issue standard osi model internet protocol suite would result best robust computer networks.concept information exchanged devices network media governed rules conventions set communication protocol specifications.nature communication actual data exchang... |
Communication protocol | communication governed wellunderstood protocols embedded process code itself.contrast shared memory communicating systems communicate using shared transmission medium.transmission necessarily reliable individual systems may use different hardware operating systems.to implement networking protocol protocol software modu... |
Communication protocol | bestknown frameworks tcpip model osi model.at time internet developed abstraction layering proven successful design approach compiler operating system design given similarities programming languages communication protocols originally monolithic networking programs decomposed cooperating protocols.gave rise concept laye... |
Communication protocol | functionalities mapped onto layers layer solving distinct class problems relating instance application transport internet network interfacefunctions.transmit message protocol selected layer.selection next protocol accomplished extending message protocol selector layer.types two types communication protocols based repre... |
Communication protocol | one method common internet protocols text oriented representation transmits requests responses lines ascii text terminated newline character usually carriage return character.examples protocols use plain humanreadable text commands ftp file transfer protocol smtp simple mail transfer protocol finger protocol.textbased ... |
Communication protocol | binary protocols advantage terseness translates speed transmission interpretation.binary used normative documents describing modern standards like ebxml http http edoc.interface uml may also considered binary protocol.basic requirements getting data across network part problem protocol.data received evaluated context p... |
Communication protocol | rules determine whether data meaningful context exchange takes place.kind rules said express semantics communication.messages sent received communicating systems establish communication.protocols therefore specify rules governing transmission.general much following addresseddata formats data exchangedigital message bit... |
Communication protocol | conceptually bitstring divided two parts called header payload.actual message carried payload.header area contains fields relevance operation protocol.bitstrings longer maximum transmission unit mtu divided pieces appropriate size.address formats data exchangeaddresses used identify sender intended receivers.addresses ... |
Communication protocol | connection sender receiver identified using address pair sender address receiver address.usually address values special meanings.alls address could taken mean addressing stations network sending address would result broadcast local network.rules describing meanings address value collectively called addressing scheme.ad... |
Communication protocol | referred address mapping.routingwhen systems directly connected intermediary systems along route intended receivers need forward messages behalf sender.internet networks connected using routers.interconnection networks routers called internetworking.detection transmission errorserror detection necessary networks data c... |
Communication protocol | acknowledgments sent receivers back respective senders.loss information timeouts retriespackets may lost network delayed transit.cope protocols sender may expect acknowledgment correct reception receiver within certain amount time.thus timeouts sender may need retransmit information.case permanently broken link retrans... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.