Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 044d688008fd550e8fbbddaf42503d0377b5c690ca02ad3dfbf67e270f05963064b2a6ceb70bc617c12a481e840b56af993d2dc170a391513d1001c467cb81b9e3