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Chrome and Firefox Extensions Posing as Free VPNs Add Clipboard Stealers via Malicious Updates

📅 June 30, 2026 📰 socket.dev 🔍 0 CVE(s) referenced

Malicious Chrome and Firefox extensions disguised as free VPNs secretly stole users’ clipboard data—including passwords, tokens, and cryptocurrency keys—by adding clipboard-stealing code in later updates and exfiltrating sensitive information to attacker-controlled servers.

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