Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0409c99a73613e2f409201641affe78bb0b28a48edb7ca7f503ad61044a00461c10a173fcf5249b06bf35c813848514c1bf5359b65dd1736a0010409f2c0f1e2ac