The week Facebook's value plunged $58 billion
Its founder Mark Zuckerberg apologised for data breaches that affected 50 million users.
The apology did not stop investors from selling shares in Facebook, with many wondering just how bad the damage would be for the social network.
The breach was called a "light bulb" moment for users, spawning the social media trend #deletefacebook.
All the negative headlines led to some advertisers saying "enough is enough".
Shares in the social media company fell from $176.80 on Monday to around $159.30 by Friday night. ■