The Real Truth About SMS 2FA: Are Your Accounts Really Safe?
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If you care about security, you’ve probably enabled two-factor authentication (2FA) on your online accounts. But here’s the catch: not all 2FA methods are created equal. The two most common methods you’ll encounter are:
- SMS-based one-time codes (TOTPs sent as text messages)
- Authenticator app-based one-time codes (apps like Google Authenticator, Authy, or Microsoft Authenticator)
You may wonder: Which one should I choose?
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The short answer is: always choose an Authenticator App over SMS. Let’s break down why.
The Weakness of SMS-Based Authentication
At one point, receiving a 6-digit code via text message felt convenient and secure. But in today’s threat landscape, SMS is now considered the weakest link in online security.
Here’s why:
- SIM Swapping Attacks: Criminals can bribe or trick mobile carrier employees…