Facebook documents seized by parliament’s Serjeant at Arms
Congress probes Cambridge Analytica-linked firm
Congress wants to know whether it's collecting data from apps or using data brokers
4m Facebook users' details 'exposed by Cambridge academics'
Personal data including age, location and gender was accessible to anyone - report
Playboy quits Facebook over 'data mismanagement'
Lifestyle brand will deactivate its pages, which have over 25 million fans