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Ransomware is a type of malware that permanently blocks access to the victim's personal data unless a "ransom" is paid. While some simple ransomware may lock the system without damaging any files, more advanced malware uses a technique called cryptoviral extortion. It encrypts the victim's files, making them inaccessible, and demands a ransom ...
The WannaCry ransomware attack was a worldwide cyberattack in May 2017 by the WannaCry ransomware cryptoworm, which targeted computers running the Microsoft Windows operating system by encrypting data and demanding ransom payments in the Bitcoin cryptocurrency. [4] It was propagated by using EternalBlue, an exploit developed by the United ...
Indiscriminate attacks. These attacks are wide-ranging, global and do not seem to discriminate among governments and companies. Operation Shady RAT. World of Hell. Red October, discovered in 2012, was reportedly operating worldwide for up to five years prior to discovery, transmitting information ranging from diplomatic secrets to personal ...
Publicly disclosed ransomware attacks identified by K12 SIX appear to have grown steadily since 2018, as compared to other types of cyberattacks, which appear to have declined or fluctuated more ...
Definitions. A cyberattack can be defined as any attempt by an individual or organization "using one or more computers and computer systems to steal, expose, change, disable or eliminate information, or to breach computer information systems, computer networks, and computer infrastructures". [1] Definitions differ as to the type of compromise ...
CryptoLocker. The CryptoLocker ransomware attack was a cyberattack using the CryptoLocker ransomware that occurred from 5 September 2013 to late May 2014. The attack utilized a trojan that targeted computers running on Microsoft Windows, [1] and was believed to have first been posted to the Internet on 5 September 2013. [2]
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