With today’s cutting-edge cybercriminals, it's always better to be safe rather than sorry. Hackers have been getting sneakier when it comes to gaining access to one’s system. They not only use brute force attacks or dictionary attacks but also search social media profiles for information you would be likely to use as a password (it is unwise to use personal information as part of your passwords). This is where a secondary authentication method comes into play. Dual authentication, or multifactor authentication (MFA), provides a way to confirm that it's you attempting to gain access to the system.