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Business email compromise (BEC)

Concept

A fraud attack in which an attacker impersonates or takes over a trusted mailbox to trick people into moving money, for example by changing bank details or approving payments.

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Title graphic: Business email compromise (BEC) (Concept)
TypeConcept

Key points about Business email compromise (BEC)

Episodes about Business email compromise (BEC)

Defender for Office 365

2026-10-29 · Video on YouTube

Most tenants run Microsoft Defender for Office 365 on defaults and assume they are protected while attackers test their filters every day. This episode is for email security admins, security engineers and SOC teams who want to tune anti-phishing, Safe Links…

SPF, DKIM and DMARC - Simply Explained

2026-10-21

Learn how SPF, DKIM and DMARC work together in Microsoft 365 to stop email spoofing, prevent Business Email Compromise, and secure your domain. Anyone with a laptop can send email that pretends to be your company. The email system we all rely on was built to…

2026-05-05 – Stop Deepfake Business Email Compromise with Verified ID2026-10-21 – SPF, DKIM and DMARC - Simply Explained2026-10-29 – Defender for Office 3652026-052026-10
Timeline of episodes about Business email compromise (BEC)

Articles about Business email compromise (BEC) (1)

Frequently asked questions

What is deepfake business email compromise?

It is BEC where attackers use AI-generated content to imitate executives and employees convincingly. · From the episode: Stop Deepfake Business Email Compromise with…

How does this help against Business Email Compromise?

It is part of the blueprint to protect your organization from fake invoices and notes that look like your boss. · From the episode: SPF, DKIM and DMARC - Simply Explained

Glossary

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Sources

Maintained by Mirko Peters (Microsoft MVP) · Last updated: