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SMS Shield: SS7 Attack Detection and Secure Authentication
28 Signals

SMS Shield: SS7 Attack Detection and Secure Authentication

Protect your phone number from interception attacks and replace vulnerable SMS authentication with secure alternatives.

Added Nov 4, 2025

Cybersecurity
Mobile Security
Identity Protection
Opportunity score

Very low opportunity (18%)

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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

A mobile security app that monitors for SS7 interception attempts and alerts users in real-time when their SMS messages may be compromised. The service provides virtual phone numbers with secure VoIP routing to shield users' real numbers from exposure, integrates with popular services to replace SMS 2FA with more secure authentication methods, and offers a security dashboard showing SMS routing anomalies and potential threats.

Why Now?

SS7 vulnerabilities are increasingly exploited by cybercriminals, and high-profile attacks like Pegasus have raised public awareness of SMS security risks. Major platforms are slowly moving away from SMS 2FA, creating demand for transition tools that protect users during this vulnerable period.

Market validation
Search demand

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Showing 1-20 of 28 signals

Google PlaySep 12, 2026
Proton Authenticator

Switch from worst Authy to Proton Authenticator. Never regret. Most trusted privacy tech company.

PodcastsSep 10, 2026
The Weekly Breach Breakdown Podcast: Ring Ring, It's Not You Anymore - SIM Swapping Attacks - S7E28
IDTheftCenter
S1

SIM swapping is a type of fraud where an identity criminal transfers your mobile phone number onto a SIM card in a device that they have control over. Once that happens, they can intercept the calls and texts that are actually meant for you, including the two-factor authentication codes a lot of us rely on to keep our accounts safe. Once they have your phone number, stop at just your mobile account. They now have access to any other account that is tied to your phone number, which means banking, email, social media, you name it. Now, you're probably asking yourself how SIM swapping attacks actually happen. Surely, there's no way an identity criminal would be able to get your SIM card without your permission, right?

Google PlaySep 7, 2026
Proton Authenticator

Outstanding 2FA app! End-to-end encryption, multi-device sync, and offline support make securing accounts simple. Easy to import existing codes from other apps without ads or tracking.

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