Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0419ffe883df7d00406d4e3cec17d0608d55a7079ca5a9ca78573578daca1c45667a421b0fdcbfa6c300b91c00abf8a243a3c5974aba51212f928c76b3d6eb531b