Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04d21f52f74fdc10c06977c112064e366616a6d0411f65762a7aefb48d52dd9efd7d5d36a88b37fa8396b8ad8d61f59427577647c2b60cb2b67f1b441f7f71dfad