Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04216fb183bd3e95cf58390ec9685c14dddc1cdb4b6e2f33af20d1b403b7f8b71f4cd405187e4669823fe57c24efcfea6aad988515272b316e22d464596e78a1fb