Why I Don’t Use SMS for 2FA (and What I Use Instead)
By John Awa-abuon
Published Dec 14, 2024
- SIM Swaps Allow Hackers to Steal Your Phone Number
- SMS Messages Can Be Intercepted
- SMS Is Tied to Your Phone Number
- What I Use Instead: Authenticator Apps
Two-factor authentication (2FA) adds a vital layer of security to your online accounts, but unfortunately, not all methods are created equal. Many people rely on SMS-based 2FA, assuming it’s a safe choice. Unfortunately, SMS is far from foolproof. Here’s why I’ve stopped using SMS for 2FA and what I use instead…
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What I Use Instead: Authenticator Apps
Rather than relying on SMS for 2FA, I’ve switched to 2FA authenticator apps. Apps like Google Authenticator, Microsoft Authenticator, and Authy generate time-based one-time passwords (TOTP) directly on your device, offering a much safer and more reliable alternative to SMS.
The first major advantage of authenticator apps is security. Unlike SMS, these apps generate codes locally on your phone, meaning they’re not transmitted over networks that could be intercepted or exploited. They’re also protected by additional layers of security—many apps require a passcode, fingerprint, or face scan to access the codes.
Another reason I prefer authenticator apps is their offline functionality. Since the codes are generated directly on the device, you don’t need a cellular connection to use them. Whether you’re in a remote area with no service or simply indoors with poor reception, you can still access your codes as long as you have your device.
I prefer Authy over other authenticator apps because it offers cloud backups, making it easy to recover my accounts if I lose my phone. At the same time, it secures these backups with encryption, ensuring that only I can access them. Google Authenticator is another popular choice. Both options are free, widely supported, and easy to set up.
Using an authenticator app is straightforward. Once you’ve set it up, usually by scanning a QR code provided by the website during the 2FA setup process, you simply open the app to access a code whenever you log in. The codes refresh every 30 seconds, so even if someone manages to steal one, it becomes useless almost immediately.
Two-factor authentication is essential for keeping your accounts secure, but the method you use matters. While SMS-based 2FA might seem convenient, it’s riddled with vulnerabilities—from SIM swaps to interception methods and even practical issues like poor cellular reception. These risks make SMS an unreliable safeguard for your online security.
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The Gooferment politicians and bureaucrats have warned that the phone networks have been hacked.
So why not MANDATE better security.
Seems simple to me?
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