Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04b640a9d9f251402514ae855441bf9cca9ee8301eba0a373d9290d705938b00187334b463dc35fcae3dcedc279298e4d420533116013c20f5a76945a753f58bd4