LSHIY Password Spray Attack Hits Microsoft 365 Accounts With 81 Million Login Attempts

A large-scale password spray campaign linked to the infrastructure provider LSHIY LLC has targeted Microsoft 365 environments, resulting in over 81 million login attempts. This campaign has led to at least 78 confirmed account compromises across 64 organizations between June 12 and June 26, 2026. According to researchers from Huntress, the activity primarily originates from […]

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