Since August 2023, Microsoft has observed intrusion activity targeting and successfully stealing credentials from multiple Microsoft customers that is enabled by highly evasive password spray attacks.
Microsoft has linked the source of these password spray attacks to a network of compromised devices we track as CovertNetwork-1658, also known as xlogin and Quad7 (7777). Microsoft is publishing this blog on how covert networks are used in attacks, with the goal of increasing awareness, improving defenses, and disrupting related activity against our customers.
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Source: Microsoft
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