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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]
DoublePulsar is a backdoor implant tool developed by the U.S. National Security Agency's (NSA) Equation Group that was leaked by The Shadow Brokers in early 2017. [3] [citation needed] The tool infected more than 200,000 Microsoft Windows computers in only a few weeks, [4] [5] [3] [6] [7] and was used alongside EternalBlue in the May 2017 WannaCry ransomware attack.
The attack was described as the worst cyberattack to date on the U.S. critical infrastructure. DarkSide successfully extorted about 75 Bitcoin (almost US$5 million) from Colonial Pipeline. U.S. officials are investigating whether the attack was purely criminal or took place with the involvement of the Russian government or another state sponsor.
Once competing nodes are gone, the attacking node can have a majority of stake on the crypto network, enabling it to conduct a 51% attack as the only validating node. Proof-of-Fake-Stake In a ...
Marcus Hutchins (born 1994), also known online as MalwareTech, is a British computer security researcher known for stopping the WannaCry ransomware attack. [1] [2] He is employed by cybersecurity firm Kryptos Logic. [3] [4] Hutchins is from Ilfracombe in Devon. [5]
After the WannaCry attack, Microsoft took "first responsibility to address these issues", but criticized government agencies like the NSA and CIA for stockpiling vulnerabilities rather than disclosing them, writing that "an equivalent scenario with conventional weapons would be the U.S. military having some of its Tomahawk missiles stolen". [32]
In August 2017, British security researcher Marcus Hutchins (aka 'MalwareTech'), previously notable for his involvement stopping the May 2017 WannaCry ransomware attack, [5] was arrested by the FBI whilst visiting the United States. [6] He was alleged to have created the software in 2014, and to have sold it in 2015 via the AlphaBay forums.
The cryptovirology attack achieves "end-to-end deniability." It is a covert asymmetric broadcast of the victim's data. Cryptovirology also encompasses the use of private information retrieval (PIR) to allow cryptoviruses to search for and steal host data without revealing the data searched for even when the cryptotrojan is under constant ...