Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 048221d3e96190742d72771352304e386674c17800e42d9917cc8859b4be0498802600e33583ce5d9d877118e0bfce1c0820c30a8550400f85c4ef02f6485b25a3