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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 ...
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". [3][4] According to Microsoft, they are based in China but primarily use United States-based virtual private servers, [6] and have targeted "infectious disease researchers, law firms ...
Volexity, a cybersecurity firm, has reconstructed the attack sequence on an unnamed US think tank: first, the attacker exploited a remote code execution vulnerability in an on-premise Microsoft Exchange server; [54] after that vulnerability was remedied, the attacker exploited security holes in the SolarWinds Orion platform, which were exposed ...
Microsoft Exchange Server is a mail server and calendaring server developed by Microsoft. It runs exclusively on Windows Server operating systems. The first version was called Exchange Server 4.0, to position it as the successor to the related Microsoft Mail 3.5.
The attacks were believed to be the third major data breach against the U.S. in the previous year behind the 2020 United States federal government data breach and the 2021 Microsoft Exchange Server data breach.
2014 On September 3, 2014 iSIGHT Partners (now Mandiant) discovered a spear-phishing campaign exploiting a zero-day vulnerability via weaponized Microsoft Office documents. The vulnerability, dubbed CVE-2014-4114, affected all versions of Windows from Vista to 8.1 and allowed attackers to execute arbitrary code on a target machine. Researchers were able to attribute the attack to the Sandworm ...
Investigation by cybersecurity firm revealed, in April 2022, that an affiliate of the Hive ransomware group was targeting Microsoft Exchange servers with vulnerability to ProxyShell security issues, deploying a variety of backdoors, such as Cobalt Strike beacon, subsequently executing network reconnaissance to steal administrator account ...
List of security hacking incidents The list of security hacking incidents covers important or noteworthy events in the history of security hacking and cracking.
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