View gallery.grim reaper It sounds morbid, but Facebook security product manager Melissa Luu-Van says that you should be prepared to die: For every online account you have, you should make sure someone can access it if you're gone. "A lot of people don't immediately think about this as a part of their digital security, but it's really important," she says. Facebook launched "legacy contacts" earlier this year to let users pick a friend who will get limited control over their accounts when they die. Legacy contacts can respond to new friend requests, write pinned posts at the top of the Timeline, download... More