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The first breach of a Microsoft Exchange Server instance was observed by cybersecurity company Volexity on 6 January 2021. [1] By the end of January, Volexity had observed a breach allowing attackers to spy on two of their customers, and alerted Microsoft to the vulnerability. After Microsoft was alerted of the breach, Volexity noted the ...
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 ...
Ivanti Pulse Connect Secure data breach. On April 20, 2021, it was reported that suspected Chinese-state backed hacker groups had breached multiple government agencies, defense companies and financial institutions in both the US and Europe after the hackers created and used a Zero-day exploit for Ivanti Pulse Connect Secure VPN devices.
2021 Microsoft Exchange Server data breach Main article: 2021 Microsoft Exchange Server data breach Microsoft named Hafnium as the group responsible for the 2021 Microsoft Exchange Server data breach , and alleged they were "state-sponsored and operating out of China".
On 18 March 2021, an REvil affiliate claimed on their data leak site that they had downloaded data from multinational hardware and electronics corporation Acer, as well as installing ransomware, which has been linked to the 2021 Microsoft Exchange Server data breach by cybersecurity firm Advanced Intel, which found first signs of Acer servers ...
In a Saturday announcement addressing the data breach, AT&T said that a dataset found on the “dark web” contains information including some Social Security numbers and passcodes for about 7.6 ...
February 8: Foxconn is hacked by a hacker group, "Swagg Security", releasing a massive amount of data including email and server logins, and even more alarming—bank account credentials of large companies like Apple and Microsoft. Swagg Security stages the attack just as a Foxconn protest ignites against terrible working conditions in southern ...
2021 Microsoft Exchange cyberattack was the older article and WP:REDUNDANTFORK states that the " the more recent article " is the one that should be merged. The word cyberattack is better than data breach as it is more general. There have been a variety of payloads and consequences, not just the copying of data.