Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04d4be87fde46d7783c5f7fc5007705b60ac6ebda992b42095c33e91439114cda4440bdfc649f3148007432b843dcf197e0451369bd74a417ce044fe41cb66d4d6