Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0409899eb86dec0c2b88a58735edd05d7ba6edc4281719878d77308fdb6ae2f4f6672a066029d3c3fa1655230d38830258878ea530abeb607b5dc739822904c3a6