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Telegram Desktop File-Theft Vulnerability

A security researcher disclosed a Telegram Desktop vulnerability enabling one-click account takeover and file theft from any user, raising concerns about the messaging platform's security posture (beaksec.github.io, October 10).

Importance: 50%Confidence: 55%Mentions: 1Updated: October 10, 2026Page history (1 revision) →

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A vulnerability in Telegram Desktop reportedly allowed any user's file to be stolen via a one-click account takeover exploit, according to a security researcher's writeup (beaksec.github.io, October 10). The disclosure details how the flaw could be exploited to compromise user accounts and exfiltrate files. This is a notable cybersecurity disclosure given Telegram's large global user base and its use for both personal and sensitive communications (including by activists, journalists, and businesses in various jurisdictions). Vulnerabilities of this kind raise questions about Telegram's security practices and patching timeline, as well as broader concerns about messaging app security for users handling sensitive data. This story is worth tracking for Telegram's official response, patch deployment, and whether the vulnerability was exploited in the wild before disclosure.