Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0473991b8a065a68c66bb278457f046b5d4d4ee97990c512af6f67579404ef13357eccac211440c7b980840d656aa2a5e80c93bf168f600ccc7bf0e674f37fca64