Security and “2FA” or two factor authentication:

Two-factor authentication (2FA) is an important security measure for small businesses to protect their online accounts and sensitive data. Security based on text messages  known as SMS-based 2FA is a common option, but it also has some risks that businesses should be aware of:

1. SMS Interception: SMS messages can be intercepted by hackers through various means, such as exploiting vulnerabilities in the telecommunication network or using a technique called “smishing” (phishing via SMS).
2. SIM Swap Attack: In a SIM swap attack, a hacker takes control of a victim’s mobile phone number by tricking the mobile service provider into transferring the number to a new SIM card. This can allow the attacker to receive the victim’s 2FA code via SMS and gain access to their accounts.
3. Mobile Phone Compromise: If a user’s mobile phone is lost or stolen, an attacker may be able to access their accounts if they have used SMS-based 2FA. The attacker could also potentially reset the password by answering security questions or using other personal information.

Therefore, small businesses should consider using alternative 2FA methods such as using an app like Microsoft Authenticator or Google Authenticator, or using hardware tokens such as the ones offered by Yubikey. These methods offer stronger security than SMS-based 2FA and can help to protect small businesses from the risks mentioned above.