Office 365 adds protection against downgrade and MITM attacks

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Microsoft is working on adding SMTP MTA Strict Transport Security (MTA-STS) support to Exchange Online to ensure Office 365 customers’ email communication security and integrity. Once MTA-STS is available in Office 365 Exchange Online, emails sent by users via Exchange Online will only one delivered using connections with both authentication and encryption, protecting against both email interception… Read more »

Office 365 now checks docs for known threats before editing

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Microsoft today announced the general availability of the Office 365 Safe Documents security feature which expands the protection provided by Protected View by checking untrusted documents for risks and known threats. Safe Documents — launched in private preview in February — uses Microsoft Defender Advanced Threat Protection (ATP) to scan documents opened in Protected view and block users from… Read more »