Alright this is a article about an encrytption method. 2FA is a way of securing your account to something that is suppose to be more difficult than regular passwords and other forms of security. Now while I have extensive experience with 2FA - its non the less a massive pain in the ass. I have used this 2FA when it was absolutely imparitive to have a secure account, such as when protecting money and other types of accounts.
2FA is a basically a 2nd passwords or phrase or string or characters being used to authenticate you on a network or place that needs security, because there are a ton of people who are trying to get into your account and others.
While 2FA is good security, its also something that people can and do forget unless they are ver very careful backing up their passwords and codes and character strings. Once forgotten, that account is finished in places like Apple. They have no means to retrieve your information ever. Not tomention the staff are not priviliedged to help you recover that information in most cases. Apple is a kind of fort knox these days and many layers of management do not have access to their own resources, never mind something as deep as 2FA - 2 Factor Authentication.
2FA has been used in Bitcoin for years .. its been a long time standard in the virtual currency markets .. I wonder why its taken so long for apple to get on board. Maybe they are just not organized enough.. what ever the reason - its a 2 edged sword with apple .. 2FA so if you initiate it .. make sure the 1st thing you do is PRINT OUT all your passwords and secret codes and photocopy it 3 times then put them away.
Does this sound extreme ? Its necessary trust me .. I have lost 2 accounts with apple .. because they could not recover them even with a recovery backup device autheniticating you, its not enough. Any place that uses 2FA will have similiar rules. But you are beter off dealing with competant System admins, they are your best friend.
If you've found that your iPhone 6s or 6s Plus is reporting an odd battery percentage, especially if you've been using your smartphone for some time, Apple is aware of the issue and is (finally) indicating it's a bug the company wants to fix. As a new support document from Apple notes, the mislabeled battery percentage tends to affect those who switch their time zones either manually or automatically when travelling. Though the company is "aware of this issue and is investigating the cause and a solution," Apple also has a few rudimentary steps you can use to try to fix the issue yourself. Unfortunately, there aren't many things you can try: Reset your phone, then check and make sure that "Set Automatically" is flipped on under your iPhone's Date & Time menu (in Settings).
If you're still having issues, Apple encourages you to contact Apple Support with your problem. That, or you can just wait until the company releases iOS 9.3, which should hopefully fix the issue (we're assuming). The company is also working on a minor iOS 9.2.1 update, but we don't yet know whether any fix for this battery issue might find its way into that patch. The strange thing about the bug is that it's taken Apple quite some time to disclose any information about it publicly, even though people have been discussing the issue since just around fall of 2015. It's unclear whether the bug is just that pesky and Apple was waiting until it found a decent solution, or whether Apple has just lagged with this particular issue. On the plus side, the bug doesn't seem to affect your iPhone's overall battery life, just what the device displays as your remaining battery percentage. That's annoying from a "is my phone about to die" standpoint, but at least your total uptime is the going to be same whether your iPhone has this issue or not. more