New Delhi, Jun 13: Facebook reportedly tracks its users and their movement on the screen, the social media giant claimed in a report submitted to the US Congress. Not only this, it also collects data about users’ ‘online and offline’ actions as well.

As per a report in BGR, Facebook in a 225-page document, admitted to monitoring the mouse movements of the users to ensure he/she is a human. It said that the tracking is necessary to differentiate between humans and bots.

“We collect information from and about the computers, phones, connected TVs and other web-connected devices users use that integrate with our Products, and we combine this information across different devices users use,” Facebook reportedly said in the document.

Mark Zuckerberg owned social media giant also confirmed that it collects information about operating systems, battery levels, hardware and software versions and even available storage space.

The document has exposed the extent of data scrutiny that Facebook users are subjected to.

Earlier in April, Facebook CEO Mark Zuckerberg testified before the US Congress and took personal responsibility for the leak of data of tens of millions of its users. Testifying before US senators in the wake of Cambridge Analytica scandal, he also wished to ensure protection of integrity of elections in India and other countries.

The 33-year-old billionaire had also apologised that Facebook failed to prevent Cambridge Analytica, a data-mining firm affiliated with US President Donald Trump’s election campaign, from gathering personal information from 87 million of its users.