Security · 1h ago
81M login attempts target Microsoft 365 accounts in password-spraying campaign
A massive password-spraying campaign hit Microsoft 365 accounts with over 81 million login attempts over two weeks. The attack targeted thousands of tenants, using a limited set of common passwords to evade detection. Microsoft has not yet issued a formal response.
Meridian48 take
The scale underscores how basic credential attacks remain a top threat, even as Microsoft pushes passwordless authentication.
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Hackers target Microsoft 365 accounts with 81 million login attempts →
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