Two-step verification by mobile phone. Quick and easy. All the user has to do is add their mobile phone number to their account - they then have to verify it and they can use the two-step verification.
As there are a large number of SMS providers, it is possible to add further providers to this...
One thing I've loved about the media gallery is that I could easily tweet the images from my Samsung smart phone. With the latest upgrades, that button has disappeared, though it is still easily found on my PC.
Please let me know how to get my tweet button back. :cry: