Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0480199821c13fd5b87b6f36839cc7ae1530c9eea1d97a0faafd0a94e692fd46535d149a7c8b7876832807dc6a7d0fcb2102bcbf910c0910ad737c5a68afea6a36