Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04186210055c637fa22ca3d3645f966e0bf3ebeb793a27afbfcb33427c724c0c3d36eee858676723737f0c53906f389f0016b5822c1275b64bae588756aaa42feb