Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 040c6b040602138b60a57771eb13b48cbb7543da73fd1a4b40eba7703f4f823f0c1c2b2e4112536f6636f37d235642794b2803bfcb4b7a07d9b9691e95db76bd46