Facebook snooped on users' Snapchat traffic in secret project, documents reveal
Facebook snooped on users' Snapchat traffic in secret project, documents reveal

Facebook snooped on users' Snapchat traffic in secret project, documents reveal | TechCrunch

What the title and bot don't mention: They did so by installing spyware on phones of users of a vpn they acquired:
What's more:
Obligatory this is why you shouldn't use a free/cheap vpn.
Can’t all vpns do this though?
Yups. You're usually better off running one yourself.