Listen to the podcast "Facebook data weaponized against you" from the March 17, 2018 episode
"50 million Facebook profiles harvested for Cambridge Analytica in major data breach": The Guardian reveals a stunning whistleblower claim that Cambridge Analytica used data on 50 million Facebook users -- data that was obtained in contravention of Facebook policies, using "personality test" apps that collected data not only on the user, but on the user's friends as well.
And then Facebook was slow to fix the problem: They claim to have acted in 2015, but didn't go on to suspend the parties involved until this week. The New York Times reports that "Cambridge not only relied on the private Facebook data but still possesses most or all of the trove."
This is a huge warning on lots of levels: To resist the urge to share too much online; to hold Facebook and other social media tools at arm's length (they're not your friends); to resist the urge to fall for the lure of "personality tests" tied to tools like Facebook; to know that third parties might collect information on you even if you didn't engage with them; to suspect anyone who claims to be collecting information online for "academic research"; and for a hundred other reasons.
Data is being weaponized, and regardless of this particular case, that is only bound to accelerate.