Browser Extensions as Wallet Thieves: How a Sports App Became a Seed Phrase Collector
If you run a crypto wallet as a browser extension, today is the day to open your extension list. In August 2026 the security firm Socket disclosed two separate campaigns in which extensions for Firefox, Chrome and Edge harvested recovery phrases, private keys and login credentials for crypto exchanges. The second of those reports was written up on August 30 and is therefore one day old. What is affected is precisely the place where many investors handle their wallet every day.
A browser extension is a small add-on program that runs inside the browser and holds permission to read and change the content of the pages you visit. That same permission is what makes it useful to wallet providers and valuable to attackers.
Browser Extensions as Wallet Thieves: What Socket Found in August 2026
Socket is a security firm specialising in software supply chains that examines packages and extensions for malicious code. Its researchers published two findings within ten days that show the same pattern and yet do not belong together.
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