Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0491d9d587f286db6d54f015204d3bb62a6c8f83d9c6dea45e1f566072c14fefc379254e6c10cb9670ed0ed92d0a8211fe5e73a078135948f9b70aef518a5705dd