Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04b91370649a83481285f8492215e58b149b087877268ba95d2fb5a9d1596e946e60db337ce7c9baf78792348ddd81923fca5f125bcff6f2e43d4ebaebba84b2f8