Why do I need to re-enter my BlackBerry ID login
After a certain amount of time passes, if you are not actively using the app or service that supports BlackBerry ID, you
might be prompted to re-enter your login information. For example, you might be prompted to re-enter your BlackBerry ID
before you download apps from the BlackBerry World storefront (previously known as BlackBerry App World).
If you change any of your BlackBerry ID information, if you delete all the data on your smartphone or tablet, or if you update
your BlackBerry Device Software on your smartphone, you might also be required to re-enter your BlackBerry ID.