bc1 is for bech32 addresses. A feature of the new segwit. Aparently there is a way to predict the private key derived from using multiple times the bc1 address.

bc1 is for bech32 addresses. A feature of the new segwit. Aparently there is a way to predict the private key derived from using multiple times the bc1 address. Details are available here: https://sudonull.com/post/8212-Bitcoin-Pseudo-Random-Number-Generator-Vulnerability https://sudonull.com/post/8212-Bitcoin-Pseudo-Random-Number-... Could it be that bech32 is less secure than thought?