The US Intelligence Community, including the NSA and CIA, uses ad-blocking technology to protect itself from the risks of online advertising, such as malvertising and data collection. This move highlights the potential dangers of the online advertising ecosystem, which can be exploited by hackers and data brokers. The IC's chief information officer has implemented network-based ad-blocking technologies to block unwanted and malicious advertising content. This decision is part of a broader effort to strengthen federal cybersecurity and move towards a zero-trust architecture.