Email security company Mimecast has disclosed today that a "sophisticated threat actor" compromised one of the certificates the company issues for customers to securely connect Microsoft 365 Exchange ...
Around 2 p.m., over 15,000 users reported outages across Microsoft 365, Outlook and Teams. In a social media post, Microsoft ...
The certificate used to authenticate Mimecast’s Sync and Recover, Continuity Monitor and Internal Email Protect (IEP) products to Microsoft 365 has been compromised by a sophisticated threat actor. A ...
A sophisticated threat actor has hijacked email security connections to spy on targets. A Mimecast-issued certificate used to authenticate some of the company’s products to Microsoft 365 Exchange Web ...
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