Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0406c556d743459ef2403bfde3b2d1f7a2ae33f98abb7fbf26626bfbb1208e986eb3baa52a3f7bdf760cc206cb0bd56e073ed2b3b24218cd877bc578ce17eb74bb