Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04206a903a37b5a4e2dd8a7e6933b0d1550323299014f37a8afdb7488e2263954ace2e139122ad9a8449512e466b885352e69ecc83fd98d88775f5f22e1b547dde