In addition to the mobile phone number, account security you can safely use this application. There are some OS on there, that becomes an option. But this time, specialized for windows phone. Of course, login with your account Microsoft.
1. How to setup setting this Application, can get into https://account.live.com/proofs/Add?mkt=en-us&apt=3:
2. Tick the OS you are using, and then Next.
3. Instal Authenticator
4. Click "I can't scan the bar code" to view the barcode key code. There will appear the key kode authenticator.
5. Copy the key code barcode "Secret key:
abcd efgh ijkl mnop" (Spaces don't matter.) that has
random letters with 12 Digits.
6. Return to the Windows Menu, and open the application authenticator is already installed.
7. Add the account that you use (press the "+" button underneath it), and your Account and input the key code which is already in the copy (No. 5). Came to be, save.
8. If it has been stored, the indicator will display the number goes below 654321 (6 digits) in join Name account. Randomly, the number below it will change over time. Please remember that number, because it will be posting on security Column your account.
9. Back to place (the website address Windows) before. (No. 1)
10. Input numbers which contain 6 digits you already remember previous (No.8) to the empty field under text "Verify the pairing was successful by entering a code below. Code generated by app ".
11. If already on the outboard, please continue with the Next. If this is successful, you will receive an Email or SMS via your mobile phone as a notification that you've managed to use the application autenthicator.
May be useful.