Microsoft Copilot Vulnerability "SearchLeak" Exposes User Data

By PulseAugur Editorial · [1 sources] · 2026-06-16 22:07

A security vulnerability dubbed "SearchLeak" has been disclosed, affecting Microsoft 365 Copilot Enterprise Search. This flaw allows attackers to exfiltrate emails, calendar data, and files with a single click on a malicious link, bypassing standard security measures. The exploit smuggles instructions into Copilot, which then hides the stolen data within an image request. While Microsoft has implemented a server-side mitigation, the vulnerability highlights potential risks associated with AI-powered productivity tools. AI

IMPACT Highlights potential data exfiltration risks in AI-integrated productivity suites, necessitating robust security measures.

RANK_REASON Disclosure of a specific vulnerability in a widely used AI-powered productivity tool.

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Mastodon — mastodon.social TIER_1 English(EN) · datarazimedia · 2026-06-16 22:07

One click on a normal Microsoft link and Copilot quietly ships emails, calendar, and files to an attacker. No password, no second click. Varonis disclosed this

One click on a normal Microsoft link and Copilot quietly ships emails, calendar, and files to an attacker. No password, no second click. Varonis disclosed this 15 June 2026 — three chained bugs in M365 Copilot Enterprise Search they call SearchLeak. The link smuggles hidden instr…

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One click on a normal Microsoft link and Copilot quietly ships emails, calendar, and files to an attacker. No password, no second click. Varonis disclosed this

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