Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 042c8c12182689bbf036bf02d4b97517c5f7b64cfd75b85026f50372575abe4921273a21bec6f4a609231b5287d1eb6d8798f9b6afc9dfbd3856edf13e442f504e