Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0428a8c7cf36710a32d68bb328f35fdb392f5602ca0d392701a08ff1e44f52fcbe9a56791721dec7968a2b79ec56556cf778a437a96a23754fb91e351b6de6d407