Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 043a21f0a3df0105bb6dc051852b197b0eeab84b6f943b502ab28e00e4035547f86cdd2dfffc37c0d03bbc98c0d8de4eed16515a87dacd68a0fa769ec8372a140f