BTCPay is a self-hosted payment processor. Merchants and hodlers use it to run Bitcoin nodes. The breach could expose private keys. If you run BTCPay, update immediately.
Ledger's Coldcard hardware wallet had a flaw. Bad actors exploited it to steal $100M+ in Bitcoin. Even 'secure' devices fail. Trust nothing blindly.
1. Update all software (nodes, wallets). 2. Use hardware wallets (Trezor, Ledger verified). 3. Never store keys on internet-connected devices.
Cold wallets (paper, hardware, airgapped) are your only foolproof defense. If your Bitcoin touches the internet, it's at risk. Move serious holdings offline.
Did you use BTCPay to deposit Bitcoin? Check your account. Did you transfer to any BTCPay address? Move those funds now. This matters if you're a merchant or self-custody user.
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