Slow Mist CISO: Security firm Koi reveals more than 40 counterfeit crypto wallet extensions in the official Firefox browser plug-in store

SlowMist's chief information security officer, 23pds, tweeted that security firm Koi had revealed more than 40 counterfeit crypto wallet extensions in the official Firefox browser add-on store, including mainstream wallets such as MetaMask and Coinbase Wallet. These malicious plug-ins steal mnemonic words by implanting event listening code and send the data back to the attacker's server.