SMS Shield: SS7 Attack Detection and Secure Authentication
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Protect your phone number from interception attacks and replace vulnerable SMS authentication with secure alternatives.
Added Nov 4, 2025
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The Problem
SMS-based authentication and communication are vulnerable to SS7 exploits and SIM-based attacks that allow hackers to intercept verification codes, enabling account takeovers and malware delivery. Users lack visibility into whether their SMS messages are being rerouted and have limited options to protect themselves beyond switching to app-based authentication. The widespread reliance on SMS for 2FA creates critical security vulnerabilities that users can't easily detect or prevent.
Potential Solution
Detailed solution approach available for premium members.
Why Now?
Market timing analysis available for premium members.
My girlfriend isnt receiving sms verification codes
For about a few months now she doesnt receive any verification code through sms, she has an iphone 13, calls and msgs go through normally. I just watched a veritasium video about ss7 attacks and how easy it is to gain access to someone's phone number and to then reroute their smses or calls to your own device. Is it possible she was hacked and how often does this even happen? Can you protect yourself against it?
SS7 Exploit
I recently found out about SS7 exploit and I'm a bit confused at how easy it is? So any hacker can just buy SS7 access to a carrier in the targets region, when the target gets an SMS from a friend, the hacker can just pretend to be the targets phone and therefore get the SMS. But why would the network prioritize the hackers phone over the targets phone even if the hacker is pretending to be him the real phone is still connected to the network or am I wrong? Also is it critically for the attacker SS7 access to a celltower near the friends phone that sends the SMS? I'm really confused by this and how to protect myself from it other than using App based 2FA.
Can call forward help defend against Pegasus-style attacks?
It is my understanding that Pegasus-style attacks are sent to a smartphone number by text, and in some cases do not even need to be clicked for activation. If this is the case, if you keep your smartphone number private, and instead use a home VOIP line, or a service like MySudo, whereby calls and text are forwarded to your smartphone number; does the Pegasus malware payload still get delivered?
Blocking SS7 attempts
What's the most secure tool/app or methodology available to deter/block hacking attempts, is it a voip/text service with specific settings or a digital landline phone line? I'm referring to consumer hacking attempts such as SS7, not authorities (stalkerware).
Apps using only sms verification to create an account?
How is it possible that iOS apps allow users to create and login to their accounts with just an sms code and no actual password? Isn’t there a major security risk there? If person A changes their phone number and person B gets person A’s old phone number, wouldn’t person B be able to login to Person A’s accounts? Sorry if a dumb question. Thanks!
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