Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0408991623c06d1f7c4742d31256843bed685745c077aaf79af747f586d94c89abd0d06601a5f08f27f72bd7eef7e80a475951bc9bf3bb48790c24e361a5f96d53