How does physical exposure translate into risk for mobile critical infrastructure, and what can teams do to reduce that risk without slowing operations down.

In our next webinar, we will share red team lessons learned and practical takeaways for security, engineering, and risk teams responsible for mobile critical infrastructure, focusing on what to prioritize and how to think about risk across people, process, and technology.

Our Founder and CEO, Philippe Langlois, will lead the session.

Thursday 5 February 2026, 14:00 to 15:00 CET
Register: https://watch.getcontrast.io/register/p1-security-physical-to-5g-core-compromise

Top 5G Security Vulnerabilities: Insights from P1 Security Pentest Activities

From weak authentication to misconfigured core functions, 5G deployments keep revealing new ways attackers can break into critical infrastructure.

Join our 5G Penetration Tester El Mehdi Regragui as he shares exclusive findings from P1 Security’s pentest activities, including:

✔ Real-world vulnerabilities in 5G networks

✔ Lessons learned from offensive security engagements

✔ Key takeaways for operators and vendors to strengthen defenses

Register here: https://watch.getcontrast.io/register/p1-security-top-5g-security-vulnerabilities-insights-from-p1-security-pentest-activities

#5G #TelecomSecurity #Pentesting #MobileSecurity #Webinar

📡 IMS and SIP: The Brains Behind Telecom Services — and Prime Targets for Attackers

Modern telecom systems rely heavily on IMS and SIP to deliver multimedia services across prepaid and postpaid platforms. But with great flexibility comes major exposure:

⚠️ SIP spoofing, session hijacking

⚠️ IMS DoS and third-party app vulnerabilities

⚠️ Weak authentication and interception risks

In our blog post, we break down:

🔍 How IMS and SIP actually work

🔍 Where the most critical vulnerabilities lie

🔍 How telcos can reinforce their infrastructure — both technically and operationally

🔗 Read the full article here:

💡 Want to go deeper? Our TS-250 training helps security teams and operators master IMS vulnerabilities: https://online-training.p1sec.com/course/ims

#TelecomSecurity #IMS #SIP #VoLTE #MobileNetworkSecurity #P1Security #VulnerabilityManagement #TS250 #Training #5G #Diameter #Smishing #SessionHijacking

🚨 Why Responsible Disclosure in Telecom Still Fails – And How P1 Security Acts

Many telco vulnerabilities never make it into public CVEs. Vendors delay, ignore, or quietly patch—without alerting operators. Meanwhile, critical infrastructure stays exposed.

At P1 Security, our process doesn’t wait in silence:

🔍 We research, pen-test, and notify both clients and vendors
⏳ We follow a 180-day disclosure window (double the standard)
🧠 When vendors remain silent, we document and publish responsibly in our Vulnerability Knowledge Base
📣 Clients are always informed and can assess their risk

Transparency isn’t optional in telecom—it’s a necessity.

🔗 https://www.p1sec.com/blog/responsible-vulnerability-disclosure-policy

#TelecomSecurity #ResponsibleDisclosure #CVE #VulnerabilityResearch #P1Security #VKB

🎥 What is O-RAN, really?

O-RAN isn't just a buzzword — it's a structural shift in how we build radio access networks.

By moving away from proprietary, locked-in systems and toward open, cloud-native architectures, operators gain flexibility… but also inherit new risks.

At the beginning of this analysis, we lay the groundwork — defining what O-RAN is before unpacking the security implications throughout the session.

▶️ Watch the full webinar for the complete breakdown: https://app.getcontrast.io/register/p1-security-open-ran

#ORAN #TelecomSecurity #5GSecurity #MobileNetworks #NetworkSecurity #CRAN #OpenRAN #TelcoSec #TelecomTransformation #CyberSecurity #P1Security

🎤 Catch us at Telco Sec Day tomorrow!

Our very own Jimmy Billaud will share his research:
"Security risk of International IP-based SIP network and effectiveness of SIP IDS" at the renowned Troopers event in Heidelberg, Germany.

Come meet us and dive deep into the real-world SIP security landscape!

#troopers25 #telcosecday

Last week, P1 Security was at MWC Barcelona, connecting with industry leaders to discuss the latest in mobile network security. From #5G vulnerabilities to #AI driven cyber threats, the conversations emphasized the need for advanced attack surface management, intrusion detection, and threat intelligence solutions.

🙏 A special thank you to Business France for their incredible support and organization throughout the event.

A huge thank you to our #partners, #customers, and industry #peers who joined us to exchange insights and drive innovation in telecom security. Looking forward to what’s next!

#MWC25 #TelecomSecurity #5GSecurity #CyberThreats #AIinTelecom #P1Security

🌐 P1 Security at GSMA FASG #30 🌐

P1 Security will be at the GSMA FASG #30 in Sophia Antipolis, France, from November 5th to 7th!

Representing us will be our Founder & CEO, Philippe Langlois, with over 30 years of network security expertise, and Martin Kacer, our Telecom Security Expert Researcher managing GSMA relations.

If you're interested in exploring security solutions for critical mobile infrastructure, discussing the latest in telcosec, or simply connecting, don’t hesitate to reach out. We’d love to meet you!

#FASG30 #TelecomSecurity #GSMA #MobileNetworks #P1Security #Networking

💥Thank You for Attending Yesterday’s Power-Packed Webinar on 5G Security & Regulatory Frameworks💥

A big shoutout to everyone who joined us for our session: Aligning regulatory frameworks (like NIS2) & TelcoSec guidelines for real-world 5G security led by our CEO & Founder Philippe Langlois, and André Årnes, Partner at White Label Consultancy and former CISO of Telenor Group.

Philippe and André shared real-world insights on the challenges of securing 5G networks and making those regulatory frameworks work in practice. This was more than just theory—it was a practical guide to navigating the complexities of 5G security.

💡 Our Q&A was filled with great questions, covering topics like:

- How do we move from NIS2 & ENISA guidelines to real 5G security controls and audit points?
- How can European telecom operators ensure NIS2 compliance, especially with SS7 access points in high-risk regions?
- What are the key steps to conducting an effective maturity assessment?

Missed it live? No problem! You can catch the full recording here: https://app.getcontrast.io/videos/a557b7d8-afea-414f-94d5-52a86193cb35 🎥

Stay tuned for more insights and events on staying ahead in 5G security and compliance.

#5GSecurity #NIS2 #TelecomCompliance #TelcoSec #MobileNetworkSecurity