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2. 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 ...

3. Ping of death - Wikipedia

   en.wikipedia.org/wiki/Ping_of_death

   Ping of death. A ping of death is a type of attack on a computer system that involves sending a malformed or otherwise malicious ping to a computer. [1] In this attack, a host sends hundreds of ping requests with a packet size that is large or illegal to another host to try to take it offline or to keep it preoccupied responding with ICMP Echo ...

4. Malware - Wikipedia

   en.wikipedia.org/wiki/Malware

   Cybercrime, which includes malware attacks as well as other crimes committed by computer, was predicted to cost the world economy US$6 trillion in 2021, and is increasing at a rate of 15% per year. Since 2021, malware has been designed to target computer systems that run critical infrastructure such as the electricity distribution network .

5. Hive (ransomware) - Wikipedia

   en.wikipedia.org/wiki/Hive_(ransomware)

   Hive (ransomware) Hive (also known as the Hive ransomware group) was a ransomware as a service (RaaS) operation carried out by the eponymous cybercrime organization between June 2021 and January 2023. The group's purpose was to attack mainly public institutions to subsequently demand ransom for release of hijacked data.

6. 2022 Costa Rican ransomware attack - Wikipedia

   en.wikipedia.org/wiki/2022_Costa_Rican_ransom...

   On May 31, 2022, at dawn, the Hive Ransomware Group carried out an attack against the Costa Rican Social Security Fund, forcing the institution to turn off all of its critical systems, including the Unique Digital Health File and the Centralized Collection System. [16] [17] The former stores sensitive medical information of patients using ...

7. 2020 United States federal government data breach - Wikipedia

   en.wikipedia.org/wiki/2020_United_States_federal...

   In 2020, a major cyberattack suspected to have been committed by a group backed by the Russian government penetrated thousands of organizations globally including multiple parts of the United States federal government, leading to a series of data breaches. [1] [28] [29] The cyberattack and data breach were reported to be among the worst cyber ...