Twitter Inc TWTR threatens a federal investigation that could cost the company billions in fines. Reason: The company is unable to properly monitor harmful sexual content on the platform.

Twitter may have violated consent decree with the Federal Trade Commission when the company reportedly found in an internal study this year that it does not adequately restrict underage users from viewing and uploading porn that New York Post quoted former FTC officials.

in a (n interview at the New York Post, former FTC Chairman William Kovacic said, that Twitter could be fined in the region of $5 billion if found to have violated the Consent Decree by failing to protect underage users.

According to a report by edgea team of Twitter employees recently found out that the company can’t allow adult creators to sell subscriptions on the social media platform.

Twitter is evaluating ways to monetize adult content on the site, but has paused the process pending security measures.

Also read: Elon Musk says Twitter refuses to spit out spam numbers: They’re ‘very suspicious’

“Twitter fails to accurately detect child sexual exploitation and non-consensual nudity on a large scale,” Verge quoted the team as saying.

The team found that the company also lacked tools to verify that adult content creators and consumers were of legal age.

Verge reported this Twitter still has issues with content that sexually exploits children. Unfortunately, while the company is well-informed about the issue, they are doing little to fix it.

According to the New York Post, a consent statement signed in 2011 prohibits Twitter from “misrepresenting” how it protects users’ security and privacy. According to FTC officials, the alleged porn moderation issues could qualify as undisclosed user privacy and security issues.

If Twitter can’t control which users watch or upload porn, “then it’s reasonable to…