Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0409ffc921c51600fb939ba68cda4ae3fa59e126897dbc29ff6a6467a53f37a0eea17e5929b7d426a5248354dd79cd0eaaf29825312f76781592d34185fb8228e2