Facebook on Friday, March 8, filed a lawsuit against two Ukrainian app developers for allegedly using quiz apps in combination with browser add-ons to scrape data from unsuspecting social media users and inject ads onto their News Feeds.
From what the company wrote, apart from compromising their details on Facebook, the users also compromised their web browsers.
The BBC has contacted Web Sun Group for comment.
As The Verge pointed out, the suit gives "Facebook a chance to defend itself against charges of being lax with privacy and security, explaining how users have been victimized by hackers - not the platform itself".
Only then were victims able to get down to the really important matter of the day: what kind of dog they were according to their zodiac sign, and what their intellectual age was.
The company has written that while installing the extension, AP users have reached an agreement with their own browser.
In this complaint, Facebook alleges that users "effectively compromised their own browsers" by installing extensions.
Facebook notes that it publicly announced the compromise around October 31st, which roughly matches the date of a BBC report revealing the private message breach, quoting Facebook blaming malicious browser extensions. That's true, but it the extension wouldn't have been able to grab data if the developers hadn't been accepted by Facebook as registered developers, permitted to use Facebook Login.
It's been a roller coaster year for Facebook investors.
Facebook now sues the hackers, who operated from the Ukrainian capital Kiev, for illegal hacking, fraud and violating the terms of service of the social medium.
Facebook in his statement of claim says: Scam name is Andrey Gorbachev and Gleb Sluchevsky.
The lawsuit accuses the pair of fraud and breach of contract and seeks monetary damages and a restraining order against the alleged hackers and their associates.
"Facebook was vulnerable to very similar types of attacks, which simply means that Facebook is really good for targeting particular users with advertising, so it makes the platform so valuable", Dan Patterson, senior producer at CNET, told CBSN.
Malicious quiz apps were used to harvest thousands of users' profile data, according to Facebook.