To enable Two-Factor Authorization, go to the SETTINGS section and click on the "Security" tab.
Install the special Google Authenticator application on your smartphone to generate one-time passwords.
Activation via Google Authenticator
Download and install Google Authenticator for iPhone / Android / Windows Phone and enter your Plisio password to start activation. Scan the displayed QR code by Google Authenticator and enter the generated code.
What are one-time OTP passwords?
One time password (OTP) is a password that is valid for only one authentication session. The one-time password can also be limited to a certain period of time. The advantage of a one-time password over a static one is that the password cannot be reused. Thus, an attacker who intercepted data from a successful authentication session cannot use the copied password to gain access to the protected system.