“They had operational insight that even most of my fellow operators at TAO did not have,” Williams said. “Whoever wrote this either was a well-placed insider or had stolen a lot of operational data.” The jolt from the Shadow Brokers’ riposte changed Williams’s life. He canceled business trips to Singapore, Hong Kong, even the Czech Republic. He always thought that if someone outed him like this, the agency would have his back. But since the Shadow Brokers post, he hadn’t gotten so much as a phone call.

