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Hackers use FastHTTP in new high-speed Microsoft 365 password attacks

Threat actors are utilizing the FastHTTP Go library to launch high-speed brute-force password attacks targeting Microsoft 365 accounts globally. The campaign was recently discovered by incident response firm SpearTip, who said the attacks began on January 6, 2024, targeting the Azure Active Directory Graph API. The researchers warn that the brute-force attacks have to successful account takeovers 10% of the time.…