Cambridge Analytica's London Offices Have Been Raided By Investigators

Christopher Wylie was a former employee of Cambridge Analytica and blew the whistle on the political consulting firm, accusing it of misusing the personal information from millions of Facebook users to manipulate voters during the 2016 USA election.

Around 18 enforcement agents from the office of Information Commissioner Elizabeth Denham entered the company's London headquarters at around 8:00 pm local time to execute the warrant.

Observer and The Guardian have been at the forefront making public about the improper use and harvesting of personal data involving about 50 million Americans by Cambridge Analytica.

The regulator said it will "consider the evidence before deciding the next steps and coming to any conclusions".

The search is part of a wider investigation into political campaigning.

Facebook founder and CEO Mark Zuckerberg, who said the company is trying to resolve the problem and prevent further issues, said in a statement the company will investigate apps with access to large amounts of user information, further restrict developers' access to data and place a tool at the top of users' feeds to show which apps have access to their information.

Facebook CEO Mark Zuckerberg has also been requested by lawmakers in the USA and U.K.to testify before investigative committees regarding Facebook's role in the data breach. "It had nothing to do with us", Banks was quoted as saying.

The company has seen its stock market value plunge by around $75 million amid the crisis, as shares closed the week down 13 percent - their worst seven days since July 2012. Please can I be absolutely clear: "we did not use any GSR data in the work we did in the 2016 U.S. presidential election", he further claims. Alexander Nix, Chief Executive of Cambridge Analytica has been suspended, after he was caught on tape bragging to British journalists that there were services of honey trap and fake stings offered to malign the political adversaries during the elections.

He apologised for the firm's involvement, but said it had licensed the data from a research company, led by an academic, that "had not received consent from most respondents".

In 2013, two years after the warning, Aleksandr Kogan, a Cambridge professor, .

Cambridge Analytica has denied any wrongdoing.

Cambridge Analytica did not immediately respond to Ars' request for comment.