One network flaw can expose millions of subscribers.
Your subscribers trust you with their calls, texts, and location. Attackers target the signaling protocols (SS7, Diameter, GTP) and the core network to intercept and track them, at scale.
We help you secure it all.
We help you secure it all.
Talk to a Telecom Security Expert
Trusted by Telecom Teams
The biggest risks aren't in the app. They're in the network.
Most testing stops at the customer app. But the signaling protocols that route every call, text, and data session are usually the target. That is where interception, tracking, and fraud happen.
How we help
We test your signaling and interconnects for the flaws that leak location and messages.
SS7, Diameter, and GTP testing
Interconnect and roaming abuse
01
How we help
We test what attackers use to commit fraud at scale, from SIM to billing.
SIM/eSIM and provisioning testing
Fraud and billing-abuse scenarios
02
How we help
We test your core, voice, and data platforms the way a real attacker would.
4G/5G core and VoLTE/VoNR testing
OSS/BSS and internal-interface testing
03
The biggest risks aren't in the app. They're in the network.
Most testing stops at the customer app. But the signaling protocols that route every call, text, and data session are usually the target. That is where interception, tracking, and fraud happen.
01 SIGNALING (SS7, DIAMETER, GTP)
These protocols trust every request.
SS7, Diameter, and GTP assume every network on the other end is friendly. An attacker with access can intercept messages, track a subscriber, or reroute traffic.
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How we help
We test your signaling and interconnects for the flaws that leak location and messages.
SS7, Diameter, and GTP testing
Interconnect and roaming abuse
01
02 SUBSCRIBER FRAUD
One flaw can be repeated a million times.
SIM swap, roaming fraud, and international revenue-share fraud scale across your whole subscriber base. A single weakness becomes a large bill.
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How we help
We test what attackers use to commit fraud at scale, from SIM to billing.
SIM/eSIM and provisioning testing
Fraud and billing-abuse scenarios
02
03 THE CORE & VOLTE/VONR
Your core carries every call and session.
The core network, VoLTE, and VoNR carry all your voice and data. Misconfigurations and weak interfaces let an attacker reach far inside.
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How we help
We test your core, voice, and data platforms the way a real attacker would.
4G/5G core and VoLTE/VoNR testing
OSS/BSS and internal-interface testing
03
What we test in the network
Signaling (SS7, Diameter, GTP)
01
Interconnect & roaming
02
4G/5G core network
03
VoLTE / VoNR voice
04
SIM / eSIM & provisioning
05
OSS / BSS systems
06
Customer portals & APIs
07
Cloud & network infrastructure
08
What We Deliver
We test the entire 5G stack
The core, its APIs, the slices, or the cloud beneath: there is a Payatu service for it.
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Signaling & interconnect testing
SS7, Diameter, GTP, roaming, and VoLTE/VoNR, tested for interception and fraud.
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ATTACKS ON THE NETWORK
Aligned to 3GPP and GSMA security
We don't just check boxes. We test your 5G core against the specs it must meet.
Standard
What it requires
How Payatu helps
India's telecom equipment security standard. Gear must be tested at a designated lab before it can be sold or deployed.
Pre-certification testing of your hardware, firmware, and software, so you pass first time.
India's mandatory testing and certification for telecom equipment (conformance, safety, EMC), often alongside ITSAR.
We prepare your equipment and align security testing with your MTCTE process.
Industry security guidelines for signaling, interconnect, and network equipment.
Signaling and interconnect testing aligned to GSMA guidance.
The security specifications behind 4G and 5G networks.
Testing your core and 5G functions against 3GPP security requirements.
India's rules requiring prompt reporting of telecom security incidents.
Detection, logging, and incident-response readiness.
WHY PAYATU
Top 1% researchers conducting your assessments
ISO/IEC 17025
India's first accredited cybersecurity testing lab. Findings that stand up to scrutiny.
CERT-In empanelled
Recognised by the government for security auditing. ISO 27001 and 9001 certified.
Researcher-led
Deep manual testing, backed by original security research.
Nullcon & Hardwear.io
We founded two of the security conferences the industry learns from.
DSCI Excellence Award
Recognised as one of India's best cybersecurity services companies in Indian geography 2025.
FAQ
Questions Web Application teams ask us.
What is Web Security Testing?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
What vulnerabilities are tested during a Web Security Assessment?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
How is Web Security Testing different from a vulnerability scan?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
When should we perform Web Security Testing?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
What do we receive after the Web Security Assessment?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
Can Web Security Testing identify business logic vulnerabilities?
Web Security Testing identifies vulnerabilities in web applications that attackers could exploit, helping organizations protect sensitive data and prevent security breaches.
Let's discuss your security maturity roadmap
Talk to a researcher who works in Telecom security every week - not a sales rep reading from a script.
