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Learning & News => News related to Crypto => Topic started by: Tnoy30 on July 02, 2020, 01:23:29 PM

Title: Researchers Expose Flaw in Bitcoin Wallets That Could Be Exploited for Double-Sp
Post by: Tnoy30 on July 02, 2020, 01:23:29 PM

A standard way to transact Bitcoin could be vulnerable to double-spending, new research has found. Blockchain sleuths at ZenGo, a wallet startup, have found a vulnerability that affected at least three major crypto wallets – Ledger Live, Edge and Breadwallet (BRD) – and potentially more.

The bug, which the Tel Aviv-based firm calls BigSpender, allows a hacker to double spend a user’s funds and possibly prevent them from ever using their wallet again. It works by exploiting a flaw in Bitcoin’s replace-by-fee (RBF) function, a failsafe  that enables users to swap an unconfirmed transaction with one that has a higher fee.
Reas on: https://www.coindesk.com/researchers-expose-flaw-in-bitcoin-wallets-that-could-be-exploited-for-double-spending