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Background. Microsoft Exchange is considered a high-value target for hackers looking to penetrate business networks, as it is email server software, and, according to Microsoft, it provides "a unique environment that could allow attackers to perform various tasks using the same built-in tools or scripts that admins use for maintenance."
Experts are still unsure of the hackers' motivations, and whether the incident may have been a "test run" for a larger attack.
Begininng in late November, the hackers used a so-called "password spray attack" to access a "legacy non-production test tenant account and gain a foothold," Microsoft explained in the blog post.
Hafnium (group) Hafnium (sometimes styled HAFNIUM; also called Silk Typhoon by Microsoft [1]) is a cyber espionage group, sometimes known as an advanced persistent threat, with alleged ties to the Chinese government. [2] [3] [4] Hafnium is closely connected to APT40. [5]
(Reuters) -The U.S. Cyber Safety Review Board is expected to issue a report detailing lapses by Microsoft that led to a targeted Chinese hack of top U.S. government officials' emails last year ...
The Chinese hack was initially disclosed in July by Microsoft in a blog post and carried out by a group the company calls Storm-0558. That same group, the panel noted, has been engaged in similar intrusions — compromising cloud providers or stealing authentication keys so it can break into accounts — since at least 2009, targeting companies ...
ILOVEYOU, sometimes referred to as the Love Bug or Loveletter, was a computer worm that infected over ten million Windows personal computers on and after May 5, 2000. It started spreading as an email message with the subject line "ILOVEYOU" and the attachment "LOVE-LETTER-FOR-YOU.TXT.vbs." At the time, Windows computers often hid the latter file extension ("VBS," a type of interpreted file) by ...
A Russian hacking group gained access to some email accounts of Microsoft senior leaders, the software giant disclosed in a regulatory filing Friday afternoon.