Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0402406c719a300738c07717f60522d49c24e08a0b38336d1136274ffdb179bb9c51647e75a034af2886539d23a9446a79756d77aa0f43d3f8d30c461d7a17253c