The reported breach and misuse of roughly 50 million Facebook users data is continuing to make headlines this week, with lawmakers around the world voicing concerns about how it occurred and how the information was used.

Heres what you should know.

What is Cambridge Analytica?

Cambridge Analytica , whose parent company is Strategic Communication Laboratories (SCL), is a data firm based in London that specializes in political and commercial marketing campaigns. It sells itself as having the ability to change audience behavior by using data to engage, persuade, and motivate individuals to act.

The firms website lists the company as having offices in New York, Washington, D.C., London, Brazil and Malaysia.

Cambridge Analytica CEO Alexander Nix was recorded bragging in recent months that his company and SCL has secretly influenced more than 200 elections around the world.