1. Definition of 2FA
Two-factor authentication (2FA) is a security method for access and identity management that requires two forms of identification to access resources and data. 2FA provides businesses with monitoring capabilities while helping to protect their most vulnerable information and networks.
2. Benefits of 2FA
Businesses use 2FA to help secure corporate resources and employees’ personal resources. This is crucial because it prevents cybercriminals from stealing, destroying, or accessing your internal data records for their own purposes.
The advantages of 2FA are countless. For example, with 2FA, users don’t need to carry or download a token generator or app linked to the tool. Most websites use your mobile device to send texts, make calls, or implement business-specific 2FA to verify your identity.
Other key benefits of 2FA include:
- No need for hardware token generators: These types of 2FA methods are often lost or misplaced. However, with advanced technology, 2FA methods have become more convenient than ever.
- More secure than traditional passwords: Code generators offer greater security since no two codes are the same.
- Maximum code entry limits: This helps prevent cybercriminals from attacking and accessing sensitive data.
- User-friendly and easy-to-manage processes: The system is designed to be intuitive for both administrators and users.
3. Authentication Methods for 2FA
There are various authentication methods available for two-factor authentication (2FA). Below is a list of some of the most common options:
- Hardware tokens:
Businesses can provide employees with hardware tokens that act as remote unlocking systems, generating codes every few seconds or minutes. This is one of the oldest forms of two-factor authentication. - Push notifications:
Push-based 2FA methods do not require a password. This type of 2FA sends a signal to your phone, prompting you to approve/deny or accept/reject access to a website or app to verify your identity. - SMS verification:
SMS (text message) can be used as a 2FA method where a trusted phone number receives a message. Users are prompted to interact with the text or use a one-time code to verify their identity on a website or app. - Voice-based authentication:
Voice authentication functions similarly to push notifications, except that your identity is verified through automation. A voice prompt may ask you to press a key or state your name to confirm your identity.
4. Distinguishing 2FA and MFA
The difference between two-factor authentication (2FA) and multi-factor authentication (MFA) lies in the number of steps used to verify a user’s identity.
- 2FA, also known as two-step authentication, requires two steps to confirm a user’s identity. It often uses time-sensitive one-time codes to prevent identity theft.
- MFA, or multi-factor authentication, involves two or more steps/processes to authenticate a user’s identity.
Typically, organizations with high-security needs (e.g., healthcare facilities, government agencies, or financial services) opt for MFA instead of 2FA. While 2FA adds an extra layer of security, it is particularly suitable for securing personal and online business accounts.