WhatsApp offers two-step verification to everyone
Protect your account with a six-digit passcode.
Facebook warns inauguration protesters over police data hunt
Officers are trying to use social networks as evidence in rioting cases.
Facebook offers extra security with USB key support
Instead of a code, you can plug in a stick like YubiKey to prove it's really you.
Facebook buys data on users' offline habits for better ads
And opting out is a lot more complicated than it should be.
Facebook halts WhatsApp data sharing across Europe
A small win for privacy regulators across the continent.
Facebook suspends WhatsApp data use after UK privacy probe
The Information Commissioner's Office (ICO) is putting the squeeze on the social media giant.
WhatsApp won't comply with India's order to delete user data (updated)
Indian users claim sharing information with Facebook puts their privacy in danger.
Germany orders Facebook to stop collecting WhatsApp data
The social network is "misleading" users, a privacy commissioner says.
Privacy groups call foul on WhatsApp sharing data with Facebook
WhatsApp promised nothing would change when it joined Facebook. Now, things are changing.