Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0416404d5fdd4438d805bd77ceb304492a01e0dc6770832aebe21dc69502e3a0037d78158a0c206da17c9e34da8d4840938b2932835745d23ba0335ea63020a72a