Trust Wallet Browser Extension Backdoor Threat Fully Eliminated in Latest Update, Confirms Cosine Analysis

AirDropMissed · 2026-01-19T12:59:28+00:00

Cosine has announced a critical fix for the Trust Wallet browser extension, completely eliminating a security vulnerability linked to PostHog. The latest version confirms the removal of all PostHog components, ensuring users can update confidently without backdoor risks.

AirDropMissed

2026-01-19 12:59:28

Abstract generation in progress

Security researchers at Cosine have officially announced a critical fix to the Trust Wallet browser extension, confirming that the security vulnerability linked to PostHog has been entirely eliminated. The newest release removes all traces of PostHog-related components, marking a complete resolution to the backdoor vulnerability that previously affected users.

Understanding the Initial Threat

Version 2.68.0 of the Trust Wallet browser extension contained a significant security flaw that leveraged PostHog, an open-source analytics platform designed for comprehensive data collection and user behavior analysis. This backdoor posed a notable risk to extension users, prompting immediate investigation and remediation efforts.

Why the Confusion Over PostHog Removal

Initial security assessments contained inaccurate intelligence regarding PostHog elimination, leading analysts to incorrectly conclude that the dependency had not been fully removed. Cosine has now clarified that these early findings were based on flawed data, and subsequent thorough auditing confirmed complete removal of all PostHog code from the updated version.

The Path to Full Resolution

The latest iteration of the Trust Wallet browser extension represents a comprehensive security overhaul. By stripping away all PostHog integrations and analytics code, Cosine confirms that the extension now operates without any backdoor vulnerabilities. This update demonstrates the importance of rigorous code audits and transparent communication with the community regarding security incidents and their ultimate resolution.

Users of the Trust Wallet browser extension can now update with confidence, knowing that the security concerns that initially prompted the Cosine investigation have been definitively addressed.

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