A newly discovered vulnerability in some popular bitcoin wallets can be exploited by scammers to commit fraud and even make the wallets themselves unusable.
Discovered by wallet startup ZenGo and revealed today, the vulnerability, dubbed "BigSpender," was found in bitcoin wallets from Ledger Live, Edge and Breadwallet but potentially affects others as well. The vulnerability allows a scammer to double-spend bitcoin, a process whereby the owner of a wallet is tricked into believing he had received a bitcoin even if the transaction hasn't been confirmed.
