Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 048399a9ce1f63a23f69369d282cfa3a4d18f5852b1e958cc3a603c5a78301d41f0b191b11bfdc9b635b43a338d794ed8f2f0f64364ac5d88bb33bface57e1110d