A chilling reality of today’s cybersecurity landscape surfaced recently on underground forums: hackers are openly selling an SS7 0-day vulnerability for just $5,000.
This isn’t fiction—according to a June 2025 report by Cybersecurity News, attackers are marketing a zero-day flaw that exploits the Signaling System No. 7 (SS7) protocol—an aging but still widely used global telecommunications standard.
The implications are serious. This isn’t just about intercepting calls or text messages. This is about exploiting a foundational weakness in the communications infrastructure that many businesses unknowingly rely on. And with attackers placing a relatively low price tag on such a critical exploit, it's clear: advanced cyber threats are now within reach of even low-level criminals.
You might be wondering: “Isn’t SS7 just telecom infrastructure? How does that affect my business?”
Because SS7 underpins mobile communication networks globally, attackers using this exploit can intercept SMS-based 2FA codes, confidential conversations, and sensitive communications. Businesses relying on mobile-based authentication are now at serious risk.
Moreover, SS7 vulnerabilities allow for location tracking, surveillance, and impersonation attacks. That means attackers can not only eavesdrop on your executive team, but potentially intercept credentials, impersonate identities, and pivot into your internal systems.
This is no longer about theoretical risks—this is about real vulnerabilities, for sale now, being scooped up by threat actors eager to bypass conventional security defenses.
What’s troubling is how quietly this is happening. Most security tools follow a “detect and respond” model, meaning they wait for something to go wrong, then try to fix it. The problem? By the time an attack is detected, the damage is already done.
Zero-day vulnerabilities like this SS7 flaw do not trigger existing detection tools. They slip past antivirus software, evade endpoint detection and response (EDR) solutions, and make a mockery of basic 2FA protections.
That’s why businesses need to rethink their entire approach to endpoint security. The stakes are simply too high to wait and react anymore.
Instead of trying to detect threats after they penetrate your defenses, what if you could stop them from executing in the first place?
That’s the premise behind AppGuard, a proven endpoint protection solution with a 10-year track record of success in preventing real-world cyberattacks.
AppGuard doesn’t rely on detection. It prevents malicious processes—even ones it’s never seen before—from executing in the first place. By enforcing strict isolation and containment policies at the kernel level, AppGuard stops zero-day exploits cold.
No updates needed. No threat signatures required. No chasing alerts at 2 a.m.
With hackers openly selling critical vulnerabilities like the SS7 zero-day, there’s no longer any excuse to trust outdated security models. Businesses must shift from the reactive “Detect and Respond” mindset to the proactive, preventative model of Isolation and Containment.
At CHIPS, we help businesses adopt AppGuard as part of a smarter, more resilient cybersecurity strategy. Whether you’re a small business or a mid-sized enterprise, AppGuard is now available for commercial use—and it can help you prevent incidents like this from ever occurring.
Don’t wait for your business to become the next breach headline.
Talk to CHIPS today about how AppGuard can protect your systems by keeping threats contained—before they ever get a chance to run.
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