Except for your bitcoins, if your cold wallet had a bug: https://research.kudelskisecurity.com/2023/03/06/polynonce-a-tale-of-a-novel-ecdsa-attack-and-bitcoin-

Except for your bitcoins, if your cold wallet had a bug: https://research.kudelskisecurity.com/2023/03/06/polynonce-a-tale-of-a-novel-ecdsa-attack-and-bitcoin-tears/ https://research.kudelskisecurity.com/2023/03/06/polynonce-a...