Passwords Are Not Enough: Important Accounts Should Use MFA

Many people believe a strong password is enough. The problem is that passwords can be stolen through phishing sites, data breaches, reuse across accounts, malware, fake support messages, or social engineering.

If your email account is compromised, attackers may be able to reset your banking, shopping, cloud storage, social media, and investment accounts. For many people, email is the master recovery account.

CISA describes multi-factor authentication, or MFA, as a layered security approach that requires users to present two or more credentials to verify identity. Even if one credential is compromised, an attacker still has to pass another layer. Source: CISA Multifactor Authentication

Common MFA methods include SMS codes, email codes, authenticator apps, push approvals, biometrics, and hardware security keys. They are not all equal. SMS is better than no MFA, but it can be affected by SIM swap attacks, intercepted messages, or compromised carrier accounts. Authenticator apps are often stronger, and hardware security keys can be stronger still for high-value accounts.

The first accounts to protect are email, banking, investment accounts, mobile carrier accounts, payment platforms, cloud storage, and social media. Mobile carrier accounts are easy to overlook. If an attacker takes control of your phone number, they may be able to receive SMS codes and reset other accounts.

After enabling MFA, save backup codes. Many services provide recovery codes that should be stored offline or in a secure place. Do not keep the only copy on the same phone that may be lost, damaged, or replaced.

Practical Checklist

First, enable MFA on your primary email account.

Second, enable MFA on banking, investment, and payment accounts.

Third, prefer authenticator apps or security keys when available.

Fourth, save recovery codes in a safe location.

Fifth, use a different password for each important account.

Sixth, use a password manager for complex passwords.

Seventh, regularly review logged-in devices and recovery email or phone settings.

This article is for general cybersecurity information only and is not enterprise security, legal, or technical audit advice. Consult a professional for high-value or business accounts.