The Bybit hack in February 2025 drained about $1.5 billion from a multisig wallet. The attackers didn’t break any code.
They manipulated the sign-off process itself – tricking multiple approvers into approving fraudulent transactions. That’s what made it unsettling.
If a major exchange with dedicated security teams can be taken down this way, what hope does an individual holder have? [Read more…] about How to Store Bitcoin Safely in 2026: Wallet Security and Self-Custody Guide