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16 November: An attempt at digital extortion, also known as a ransomware attack, is confirmed by the Library. [ 9 ] 20 November: Rhysida claims responsibility for the breach and launches a week-long auction for 490,191 files of data on the dark web , opening bidding at 20 bitcoin , at the time equivalent to about £ 596,000, for a single buyer.
The attackers exploited flaws in Microsoft products, services, and software distribution infrastructure. [23] [15] [9] [18]At least one reseller of Microsoft cloud services was compromised by the attackers, constituting a supply chain attack that allowed the attackers to access Microsoft cloud services used by the reseller's customers.
Marissa Mayer, who was CEO of Yahoo at the time of the breaches, at the World Economic Forum 2013 . The first data breach occurred on Yahoo servers in August 2013 [1] and affected all three billion user accounts.
The malware was first observed by researchers from the MalwareHunterTeam in mid-November 2021. [7]By April 2022, the Federal Bureau of Investigation (FBI) released an advisory that several developers and money launderers for BlackCat had links to two defunct ransomware as a service (RaaS) groups – DarkSide and BlackMatter. [7]
Marissa Mayer, who was CEO of Yahoo at the time of the breaches, at the World Economic Forum 2013 . The first data breach occurred on Yahoo servers in August 2013 [1] and affected all three billion user accounts.
In mid-May 2021 hospital computer systems and phone lines run by the Waikato District Health Board (DHB) in New Zealand were affected by a ransomware attack. On 25 May, an unidentified group claimed responsibility for the hack and issued an ultimatum to the Waikato DHB, having obtained sensitive data about patients, staff and finances.
An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information technology (IT) security) is the protection of computer software, systems and networks from threats that may result in unauthorized information disclosure, theft of (or damage to) hardware, software, or ...
The REvil ransomware gang officially took credit for the attack and claimed to have encrypted more than one million systems during the incident. They initially asked for a $70 million ransom payment to release a universal decryptor to unlock all affected systems. [ 14 ]
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