Facebook has now hinted at an answer May 14, announcing that it suspended 200 apps as it investigates whether they had misused people's data.
In the blog post, VP of Product Partnerships Ime Archibong gave an update on Facebook's investigation into apps that had access to user data prior to rule changes in 2014 reduced that access.
On March 21, Facebook founder and CEO Mark Zuckerbergpromised an app investigation and audit, promising to ban any apps that were found to have or abuse excessive amounts of personal data.
One of the more than 200 apps is myPersonality, a personality quiz that was suspended during early April and is being investigated, said Facebook officials. The first phase, now underway, consists of Facebook employees and external experts reviewing apps to identify those which had access to an extremely large amount of user data.
"The investigation process is in full swing", Archibong said. "First, a comprehensive review to identify every app that had access to this amount of Facebookdata".
Facebook didn't offer a timeline for this investigation.
The move comes as the social network conducts an audit of apps that might have mishandled Facebook user data before the company changed its data-access policy several years ago.
"We are investing heavily to make sure this investigation is as thorough and timely as possible". Since then, Facebook set up a website that tells you whether your profile data was collected by Cambridge Analytica. The company said its teams of experts will be conducting interviews and on-site inspections of potential offenders. In response to the data breach, Facebook has lost billions of dollars in market value.
Facebook did not immediately provide detail on which apps were suspended or how many people had used them.
The suspended myPersonality app had 6 million users, half of whom consented to having their anonymized information shared for a research project by Cambridge University researchers, according to New Scientist.