EchoLeak

Concept

A zero-click prompt injection vulnerability in Microsoft 365 Copilot (CVE-2025-32711) in which a crafted email could cause Copilot to exfiltrate data; the episode describes it as an LLM scope violation.

Title graphic: EchoLeak (Concept)

Type	Concept

Articles about EchoLeak (2)

Fixing Copilot's Flaws with Small Language Models
2026-08-26 · Mirko Peters
Welcome back to the podcast companion blog! In this post, we are diving deep into the technical shift transforming how enterprise organizations approach artificial …
Copilot and Endpoint Security Requirements: The Ultimate Microsoft 365 Guide
2026-04-17 · Mirko Peters
If you’re thinking about launching Microsoft Copilot across your Microsoft 365 environment, you can’t afford to overlook endpoint security. This guide g…

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Sources

Profile: arxiv.org/html/2509.10540v1
Feed for this topic (RSS): entity/echoleak/feed.xml
Articles on this topic: 2

Maintained by Mirko Peters (Microsoft MVP) · Last updated: 2026-11-03