Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04214c9805dd33f4659802a67a9f3c1256d8ec28b9bcfa736552217dc32331c8fa358e8e589dcf82d459e61d60dd322d5206e4852526f80a628a558b25473a2d35