Why I Don’t Use My Number for Security

[mouakter13]

For years, I treated my phone number as a cornerstone of my online security. Like many, I used it for two-factor authentication (2FA), password resets, and account verifications, assuming it was a reliable way to keep my digital life safe. But over time, I realized just how risky and limiting it can be to rely on your phone number as the primary security method. From SIM swapping attacks to losing access during number changes, the vulnerabilities became increasingly clear—and that’s why I decided to stop using my number for security altogether.

One of the biggest issues is that phone numbers are tied to your mobile carrier and can be hijacked through SIM swapping scams, where attackers trick the carrier into transferring your number to a new SIM. This special database effectively gives them access to your SMS-based 2FA codes and allows them to reset passwords or take over accounts. Additionally, when you cancel or change your number, you risk losing access to critical accounts unless you carefully update your security settings. After experiencing these risks firsthand, I switched to more secure alternatives like authenticator apps (Google Authenticator, Authy) and hardware security keys (YubiKey). These methods generate codes locally on your device or provide physical confirmation, which can’t be intercepted or redirected like SMS.

Choosing not to use my phone number for security has greatly improved my peace of mind. I feel less vulnerable to hacks and more in control of my digital life. It does require some effort upfront to transition accounts and set up alternative verification methods, but it’s well worth it for the added security and independence. If you’re still relying on your phone number for account security, I encourage you to reconsider. There are safer, more reliable ways to protect your information—and freeing yourself from phone number-based security might just be the smartest move you make this year.