There are several different two-factor authentication methods available, each with its own pros and cons. Some common methods include SMS codes1, code generation applications1, U2F tokens1, contactless hardware tokens1, and biometric data1.

The main advantage of two-factor authentication is increased login security. However, some shortcomings include an increase in the time it takes to log into a system and the risk of losing physical media used for one of the authentication steps (such as a mobile phone or U2F key)2.

Would you like more information on any specific method?
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence