The U.S. government is the biggest buyer in a growing gray market where hackers and defense contractors sell tools to compromise computers. Cyber weapons typically exploit vulnerabilities in commercial software that the government wants to hide behind a veil of secrecy. A major concern about the government’s actions is that it’s using what it buys for offensive weapons at the expense of not only the country’s cyber defenses but the private sector’s as well. The CIA, NSA and all the major defense contractors have the technical capabilities to uncover software vulnerabilities and write exploits.”]
Source: https://www.csoonline.com/article/2133489/fed-offensive-fueling-hacker-underground–report-says.html