Key quote regarding Yubikey vulnerability: "We estimate that *the vulnerability exists for more than 14 years* in Infineon top secure chips."

32 million Yubikey units have been sold.

Multi-vendor multisig is the only rational setup for your BTC savings.

https://arstechnica.com/security/2024/09/yubikeys-are-vulnerable-to-cloning-attacks-thanks-to-newly-discovered-side-channel/