Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04664f5c6a7f6a1bc9abc41b17513a48098f977331f4b9988bf6b7f00ffb5973b38412f316b269325a5740bef3e405ea70121818f21d72e579cbdb857223a1b151