Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04b90719066cce4b2957c0aafa6dbf873974e84e3ce9508faa7be391f19b26797ecd4e8099f1f0a3bb54732bd25ffd66840edfc10267e3361bc2c5604c41f945e1