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  2. Ransomware - Wikipedia

    en.wikipedia.org/wiki/Ransomware

    Ransomware is a type of cryptovirological 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 ...

  3. WannaCry ransomware attack - Wikipedia

    en.wikipedia.org/wiki/WannaCry_ransomware_attack

    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. [5] It propagated by using EternalBlue, an exploit developed by the United States ...

  4. Kaseya VSA ransomware attack - Wikipedia

    en.wikipedia.org/wiki/Kaseya_VSA_ransomware_attack

    Kaseya VSA ransomware attack. On 2 July 2021, a number of managed service providers (MSPs) and their customers became victims of a ransomware attack perpetrated by the REvil group, [1] causing widespread downtime for over 1,000 companies. [2] [3] The attack was carried out by exploiting a vulnerability in VSA (Virtual System Administrator), a ...

  5. Health Service Executive ransomware attack - Wikipedia

    en.wikipedia.org/wiki/Health_Service_Executive...

    On 14 May 2021, the Health Service Executive (HSE) of Ireland suffered a major ransomware cyberattack which caused all of its IT systems nationwide to be shut down.. It was the most significant cybercrime attack on an Irish state agency and the largest known attack against a health service computer system.

  6. Trojan horse (computing) - Wikipedia

    en.wikipedia.org/wiki/Trojan_horse_(computing)

    A Trojan attack on cloud systems tries to insert an application or service into the system that can impact the cloud services by changing or stopping the functionalities. When the cloud system identifies the attacks as legitimate, the service or application is performed which can damage and infect the cloud system. Linux sudo example

  7. REvil - Wikipedia

    en.wikipedia.org/wiki/REvil

    REvil. REvil ( Ransomware Evil; also known as Sodinokibi) was a Russia-based [1] or Russian-speaking [2] private ransomware -as-a-service (RaaS) operation. [3] After an attack, REvil would threaten to publish the information on their page Happy Blog unless the ransom was received.

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