End-to-end encryption makes WhatsApp chats private and secure. However, if someone has access to your iPhone, they can easily open the app and browse through all of your personal conversations. Luckily, there's an easy way to block any would-be intruders at the gates — just lock the app behind Face ID or Touch ID. WhatsApp isn't the first to offer this extra layer of security. Plenty of developers have options to secure their apps with Face ID or Touch ID, whether they're for messaging services, email accounts, banking companies, coffee shops, or anything in between. But it's always a welcome... more
