You trust your email security settings for a reason. So when an AI assistant quietly reads and summarizes messages marked confidential, that trust takes a hit. Microsoft says a bug in Microsoft 365 ...

Microsoft has introduced a new Email Security Transparency Dashboard in Microsoft Defender for Office 365, offering customers visibility into threat detection metrics and benchmarking data. "At ...

Beware this highly sophisticated Microsoft 365 attack. Update, March 15, 2025: This story, originally published March 13, has been updated with further technical detail regarding the Microsoft 365 ...

Microsoft has begun rolling out a new feature in Office 365 to stop email bombing, a type of cyberattack that has grown increasingly common in recent years. Email bombing is when lots of emails are ...

Microsoft says its Defender for Office 365 cloud-based email security suite will now automatically detect and block email bombing attacks. Defender for Office 365 (formerly known as Office 365 ...

Microsoft’s latest email threat report shows a 146% rise in QR code phishing attacks in Q1 2026, as attackers adapt to bypass ...