Facebook has introduced a new feature for iPhone, iPad and Android users which means you can automatically sync any photos you take on your mobile device with your Facebook account. Here are nine things you should know about Facebook Photo Syncing: You have to opt-in to Facebook Photo Sync. Your last 20 photographs and every subsequent photo you take, will be automatically uploaded in the background to a private Facebook album. The photos that you have synced from your phone are not visible to any other Facebook users.”]
Source: https://nakedsecurity.sophos.com/2012/12/03/facebook-photo-sync-things-should-know/