Enabling 2 Factor Authentication from Trusted Device

1. Go to Me Menu- My Profile
2. Go to Account Tab
3. Click 2 Factor Authentication 
4. Click Activate 
5. Choose Security Questions 
6. Scan Bar Code from Authentication App on Trusted Device and then enter current code displayed in your application

Disabling 2 Factor Authentication

1. Go to Me Menu- My Profile
2. Go to Account Tab
3. Click 2 Factor Authentication
   
4. De-activate the 2-Factor authentication