Is Defender enough? The case for layered email security

Email security solutions look similar on paper. Most scan attachments, most scan URLs, most look for phishing. So when Defender is already included in your M365 licence, the question is fair: why pay for a second layer?

This session answers that question with data. Mimecast's threat protection team shares what their API-based scanning catches behind Defender every month for the average customer, walks through three real attack campaigns that Defender cleared and Mimecast caught, and explains the specific detection gaps that make these bypasses possible.

The Q&A goes further. A Mimecast engineer describes how he tested Defender's sandbox by writing macros designed to bypass it, and how long it took.

• What Mimecast catches behind Defender every month, quantified by attack type
• Three real campaigns that bypassed Defender's detection, walked through step by step
• Why Defender's VM-based sandboxing misses threats that a different inspection method catches
• What the cost of a single missed attack looks like against the cost of a second layer