Why You Shouldn't Use SMS Authentication

Why You Shouldn't Use SMS Authentication

Welcome to the digital age, where security is more important than ever! As we move our lives online, we need to make sure our accounts are secure and protected from cyber threats. That's where two-factor authentication (2FA) comes in, but not all forms of 2FA are created equal. In this blog post, we'll explore why SMS authentication is a bad idea for consumers, discuss some alternative authentication methods, and highlight the importance of free 2FA for everyone.

What is SMS Authentication?

SMS authentication is a form of 2FA that uses your phone number to send a one-time password (OTP) that verifies your identity. You enter the OTP on the website or app you're trying to access, and once it's verified, you're in.

The Risks of SMS Authentication

SMS authentication may seem secure, but it's not foolproof. Cybercriminals have developed a technique called sim swapping, where they convince your mobile carrier to transfer your phone number to a new SIM card they control. Once they have your phone number, they can intercept OTPs and gain access to your accounts.

Alternative Authentication Methods

Luckily, there are alternative authentication methods that are more secure than SMS authentication. Here are some of them:

  1. App-Based Authentication: This method uses a mobile app to generate a unique OTP that's difficult for cybercriminals to intercept.
  2. Hardware Tokens: These are physical devices that generate OTPs, making them a convenient and secure option.
  3. Biometric Authentication: This method uses physical characteristics like your face, fingerprints, or voice to verify your identity.
  4. Physical Authentication: This involves using physical objects like USB keys to authenticate your identity, which is a highly secure method.

Twitter Blue and the Laughable 2FA Lockdown

Well, well, well, if it isn't Twitter with another zinger. They've decided to lock SMS 2FA behind their Twitter Blue subscription service. Is it really necessary to pay for social media security? Are we going to have to start paying for tweets next? Twitter, let's get real. We all know that your security team is working hard to keep our accounts safe. But, locking basic 2FA behind a paywall is like putting a lock on the door of a house with no walls.

Anyway, back to the topic at hand - SMS authentication is a terrible idea, and Twitter's attempt to monetize 2FA is just laughable. Cybercriminals can easily intercept SMS OTPs and wreak havoc on your digital life. So, instead of relying on SMS authentication, let's explore some better options like app-based authentication, hardware tokens, biometric authentication, and physical authentication.

Let's face it, cybersecurity is no joke, but sometimes you have to laugh to keep from crying. And Twitter, well, they're just providing us with some extra laughs. But, in all seriousness, let's hope that Twitter and other tech giants will start taking our digital security seriously and stop treating basic security measures like a luxury service.

The Damage of Sim Swapping

Sim swapping can cause a lot of damage. Cybercriminals can steal your personal information, your money, and even your social media accounts. You could also lose access to your phone number, making it difficult to recover your accounts or receive important calls and messages.


SMS authentication may be convenient, but it's not the most secure option. Sim swapping is a real threat that can cause a lot of damage. As consumers, we need to consider alternative authentication methods to better protect our accounts. Whether it's app-based authentication, hardware tokens, biometric authentication, or physical authentication, we have plenty of options. It's also important that 2FA is free for everyone to use, so we can all enjoy peace of mind knowing our personal information and accounts are secure. Stay safe out there!