Montana Gov. Greg Gianforte signed the law banning downloads of the popular social platform.
The law is expected to face legal challenges, as critics say it restricts the right to freedom of expression. The governor insisted the app was used "to spy on Americans, violate their privacy and steal their personal data" The state Congress had passed a bill in April making it illegal for download stores to offer users the app and banning the company from operating in the state. It is one of the most popular social networks in the world.