Hvad er en Keylogger? Hvordan dit tastatur kan forræde dig

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Ud af alle de forskellige typer malware, der lurer på Internettet, lyder et program, der ser på dig, ikke skræmmende. Desværre, hvis de sniker sig ind på et system, kan de forårsage nogle ødelæggende privatlivsproblemer for offeret.

Lad os udforske keyloggers, hvad de gør, og hvordan du beskytter dig selv.

Hvad er en Keylogger?

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En keyloggers formål er indlysende fra navnet. Det installerer sig stille på din computer og begynder at logge alt, hvad du skriver. Den sender derefter dataene tilbage til hackeren, der nu har en fuldstændig oversigt over alt, hvad du skrev den dag.

Keyloggers bruger ikke unikke metoder til at sprede sig på computere. Du finder dem i phishing-e-mails, inficerede links og ondsindede downloads.

Hvad der gør dem skræmmende er hvor tavse de er; i modsætning til ransomware, hvor det øjeblikkeligt bliver tydeligt, at du er under angreb, kan en keylogger teoretisk hænge omkring din computer, indtil du finder den. Denne egenskab betyder, at brugere kan bruge en pc, der er inficeret med en keylogger i lange perioder uden at vide det.

Hvordan Keyloggers kan være ødelæggende

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Du spekulerer måske på, hvad der er så dårligt ved et program, der overvåger din indtastning. Hvad betyder det, hvis en hacker får vist dine Facebook-indlæg, din købmandsliste, eller hvad du trykker på, når du spiller et videospil?

Ting bliver skræmmere, når du tænker på de følsomme oplysninger, du skriver på et tastatur. Lad os sige, at du skriver en arbejds-e-mail, der indeholder meget private oplysninger. Hvis der findes en keylogger på dit system, vil hacker være i stand til at læse alt, hvad du skriver om, og kan kompromittere virksomhedens privatliv.

Du kan også forestille dig, at du har en bankkonto hos Hello Banking. Dit bruger-id er 110673, og dit kodeord er “opensesame.”

Forestil dig nu, at du beslutter at kontrollere din banksaldo, mens en keylogger er på dit system. Du får adgang til websiden, indtast dit ID og din adgangskode og logger ind på webstedet. Hackeren vil se følgende:

www.hellobanking.com110673opensesame

Det er ikke for meget at strække for hackeren at antage, at databitene efter URL'en er dit ID og din adgangskode. Ved hjælp af disse oplysninger kan de logge på din bankkonto med de detaljer, du har “gav” til dem.

Kort sagt, forestil dig, at du bruger en offentlig pc, og at nogen ser over skulderen på alle tidspunkter. Hvilken type data ville du føle dig ukomfortabel med at indtaste, vel vidende at nogen ser din hver eneste bevægelse? Disse data er det, du vil beskytte mod en keylogger.

Sådan forsvarer du dig mod Keyloggers

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Heldigvis, selvom keyloggers kan være en ødelæggende overtrædelse af privatlivets fred, er de ikke vanskelige at besejre. At forsvare dig selv kræver et andet lag af sikkerhed for at forhindre hackere i at kompromittere dine konti.

1. Installer en stærk Keylogger-detektor eller antivirus

Den første handlingsplan er at sikre, at din computers skærme er stærke nok til at afvise en keylogger. Ethvert godt sikkerhedsprogram vil se en fortællingsopførsel fra en keylogger og forhindre, at den installerer sig selv.

Som sådan er det værd at få en vel modtaget antivirus til at håndtere disse angreb. Du behøver ikke betale meget for en god antivirus - nogle fremragende løsninger er endda gratis.

Hvis du ikke er sikker på, hvor du skal starte med sikkerhedssoftware, er det værd at prøve den bedste gratis antivirus-software. De 10 bedste gratis antivirus-software De 10 bedste gratis antivirus-software Uanset hvilken computer du bruger, har du brug for antivirusbeskyttelse. Her er de bedste gratis antivirusværktøjer, du kan bruge. ledig.

2. Føj tofaktorautentisering (2FA) til dine konti

Hvis du kan, skal du tilføje 2FA til dine konti for at stoppe keyloggers. 2FA findes normalt i en af ​​to stilarter; en midlertidig kode eller en sekundær adgangskode, som du ikke skriver ud. Enten er effektive mod keyloggers.

Brug af en midlertidig kode til at beskytte din konto

Midlertidig kode 2FA-metoder kræver en ekstra adgangskode, når du logger ind. Denne adgangskode er normalt en lille kode, der er sendt til dig, sendt til dig eller genereret ved hjælp af en officiel app. Derefter indtaster du koden på login-siden for at få adgang til din konto.

Det gode ved denne metode er, at koderne er engangsbrug. Lad os forestille os, at i ovenstående Hello Banking-eksempel er en kode sendt til din telefon, når du logger ind. Når du indtaster koden på webstedet, vil hackeren også se denne kode.

Heldigvis for dig er det dog en midlertidig kode. Hvis hacker forsøger at bruge den samme kode, som du gør, informerer webstedet dem om, at den er udløbet. Som sådan, mens hackeren har dit brugernavn og din adgangskode, kan de aldrig få adgang, medmindre de også kontrollerer de midler, gennem hvilke du får dine 2FA-koder..

Hvis du vil låse din online tilstedeværelse mod keyloggers, er der måder at sikre dine Gmail, Outlook og andre konti ved hjælp af 2FA Sådan sikres dine konti med 2FA: Gmail, Outlook og mere Sådan sikres dine konti med 2FA: Gmail , Outlook og mere Kan tofaktorautentisering hjælpe med at sikre din e-mail og sociale netværk? Her er hvad du har brug for at vide for at blive sikker online. .

Brug af en sekundær “Delvis” Adgangskode til at forveksle Keyloggers

Har du nogensinde brugt en service, hvor de beder om et kodeord, men de beder aldrig om det fuldt ud? De kan bede dig om den anden, femte og ottende karakter i dit kodeord i stedet. Denne metode er en smart måde at besejre keyloggers fra at kompromittere din konto.

Lad os sige, at din Hello Banking-adgangskode stadig er “opensesame,” men du har en sekundær adgangskode, som er “ineedbetterpasswords.” Når du logger ind, beder webstedet om den tredje, femte og syvende karakter i dit sekundære kodeord. Du går ind “e,” “d,” og “e,” som giver dig adgang til webstedet.

Når nu keylogger overfører dine data til hacker, vil de se dit kodeord som dette:

opensesameede

Selvom hackeren ved, at “Ede” i slutningen er en del af dit sekundære kodeord, det fortæller dem ikke noget. Der er ingen ledetråde i forbindelse med, hvad din sekundære adgangskode er, eller hvor disse tre tegn vises i det.

Endnu bedre giver nogle websteder dig mulighed for at vælge karaktererne i din sekundære adgangskode ved hjælp af rullemenuer. I stedet for at bruge dit tastatur til at indtaste tegnet, skal du klikke med musen. Dermed undgås keyloggeren helt og nægter hackeren eventuelle ledetråde til din sekundære adgangskode.

3. Brug en Password Manager

En hacker kan ikke få din adgangskode, hvis du aldrig skriver den fysisk. Adgangskodeadministratorer udfylder automatisk dine detaljer, når du går til at logge ind, så du ikke behøver at skrive en ting. Denne funktion kører rundt om en keyloggers detektion og sikrer, at din konto ikke er sikker på at overvåge.

Hvis du er ny i en verden af ​​adgangskodeadministratorer, hvorfor ikke læse op om de bedste adgangskodeadministratorer til enhver lejlighed De bedste adgangskodeadministratorer til enhver lejlighed De bedste adgangskodeadministratorer til enhver lejlighed Kæmper for at huske dine stadig mere detaljerede adgangskoder? Det er tid til at stole på en af ​​disse gratis eller betalte adgangskodeadministratorer! ?

4. Indsæt følsomme data uden at bruge det fysiske tastatur

Denne taktik er sandsynligvis overflødig, hvis du har udført ovenstående indstillinger, men det er værd at gøre, hvis du har mistanke om, at en keylogger er aktiv. Når du skal indtaste følsomme data, skal du gøre det uden at skrive det ud på det fysiske tastatur.

Du kan kopiere-indsætte oplysningerne fra en anden kilde eller bruge din computers virtuelle tastatur til at klikke på de bogstaver, du vil indtaste.

Hvis din computer understøtter tekst-til-tale, kan du også bruge det; bare sørg for, at ingen i nærheden vil lytte til dig, hvor du stave din adgangskode, eller at du har mere markante problemer end keyloggers.

Læring om Keyloggers

Til at begynde med virker keyloggers temmelig ufarlige. Når du tænker på følgerne af et program, der logger alt, hvad du skriver, er det let at se, hvordan de kan være så ødelæggende. Ved at holde dit forstand om dig, installere en god antivirus og håndtere dine adgangskoder bedre, kan du besejre disse ondsindede programmer.

Vil du lære, hvordan du holder keyloggers i skak? Sørg for at læse om måderne til at beskytte dig selv mod keyloggers 5 måder at beskytte dig mod keyloggers 5 måder at beskytte dig mod keyloggers Keyloggers er en af ​​de mest frygtede trusler mod computersikkerhed. Vær opmærksom på disse tip, så du ikke bliver offer for hackere. .




20.10.23 12:51
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Om moderne teknologi, enkel og overkommelig.
Din guide i en verden af moderne teknologi. Lær hvordan du bruger de teknologier og gadgets, der omgiver os hver dag, og lær, hvordan du finder interessante ting på Internettet.