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[Home](https://www.t-mobile.com/business) 2. Advancing Cybersecurity at T-Mobile # Advancing Cybersecurity at T-Mobile: Our Security Report [Advancing Cybersecurity at T-Mobile: Our Security Report](https://www.t-mobile.com) Advancing Cybersecurity at T-Mobile: Our Security Report Learn about our cybersecurity program and the steps we’re taking to continue to strengthen our defenses and protect our customers and businesses. [Read the full report , opens in a new window](https://www.t-mobile.com/content/dam/digx/tfb/us/en/non-dynamic-media/pdf/Advancing_Cybersecurity_at_T-Mobile.pdf?icid=TFB_TBW_P_20TFBEVRGN_048298566MT0R97786000)  ## Advancing Cybersecurity at T-Mobile: Our Security Report SHARE THIS ARTICLE: - [](https://www.linkedin.com/cws/share?url=https%3A%2F%2Fwww.t-mobile.com%2Fbusiness%2Fresources%2Farticles%2Fcybersecurity-report) - [](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.t-mobile.com%2Fbusiness%2Fresources%2Farticles%2Fcybersecurity-report) - [](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.t-mobile.com%2Fbusiness%2Fresources%2Farticles%2Fcybersecurity-report&text=) ### Key takeaways: - We saw a 37% increase in attempted intrusions over a recent 12-month period, even as credential-based attempts decreased 35%. - Threats are evolving, and our cybersecurity program is designed to adapt. - We have reduced successful SIM swap attacks and phishing-related credential compromises by 99%, and protected customers from 160 billion unwanted calls. - We will continue to test against real-world threats and raise the security baseline across the broader ecosystem. ## Executive summary. “Cybersecurity isn’t a destination. It’s a direction.”  __Mark Clancy,__ Senior Vice President & Information Security Officer, T-Mobile *Advancing Cybersecurity at T-Mobile* is a new report on the steps T-Mobile is taking to protect our customers, defend our network against cyber attacks, and help strengthen the nation's critical communications infrastructure. The report details the breadth of our cybersecurity program—from embedding security into our 5G network architecture and defending against Salt Typhoon, to opening a new Cyber Defense Center and strengthening protections for customers. “At T-Mobile, protecting customers is fundamental to who we are, and safeguarding their information is a commitment we take seriously," says Jeff Simon, Executive Vice President & Chief Information Officer at T-Mobile. "This report is an important step that reflects our role in that work—how our cybersecurity program has evolved, where we’ve made progress, and how we’re continuing to strengthen our defenses for the future.” ## A changing landscape. The threat environment we face is constantly evolving. Over a recent 12-month period, we observed a 37% increase in attempted intrusions, even as credential-based attempts decreased 35%. It's a clear sign that bad actors are quickly adjusting how they attack. Consumers and businesses alike are feeling the pressure. We continue to identify hundreds of millions of scam and spam calls every week, and we saw nearly 50% more scam and spam messages in 2025 than in 2024. "Our industry connects families, businesses, first responders, and communities every day, making the security of our networks a responsibility that extends beyond any single company."  __Jeff Simon__, Executive Vice President & Chief Information Officer, T-Mobile ## A program designed to adapt. This fast-moving landscape is exactly why we've invested across every layer of our cybersecurity program—including our people, tools, and processes. We are building a program that's designed to adapt as threats evolve.  ### Strengthening teams and real-time defenses. We’ve grown our cybersecurity team, expanded hands-on training, and opened a Cyber Defense Center to help security teams detect, disrupt, and respond to cyber threats 24/7.  ### Protecting customers from 160 billion unwanted calls. Since launching Scam ID and Scam Block in March 2017, we’ve identified and blocked scam and spam calls at massive scale. In 2025 alone, we tagged nearly 29 billion inbound calls as likely scam or spam.  ### Reducing successful SIM swap attacks by 99%. Through layered authentication measures, we sharply reduced one of the most damaging attack vectors targeting consumers.  ### Reducing phishing-related credential compromises by 99%. We've strengthened workforce access through biometric identity verification, passwordless authentication, and zero trust controls.  ### Collaborating on more than 1,400 valid Bug Bounty submissions. We enlisted the global security community through our Bug Bounty program to help us find and fix vulnerabilities across platforms and systems.  ### Helping businesses strengthen security. Our solutions are designed to help organizations identify cyber risk, secure access, and protect distributed workforces. Offerings include Risk-Based Vulnerability Management, Patch Management, Mobile Threat Defense and SASE (including T-SIMsecure and Security Slice). ## Security you can verify. Trust needs to be verifiable, not simply stated. We align our security program with the NIST Cybersecurity Framework and validate our work through independent certifications and assurance reports, including ISO/IEC 27001:2022, ISO/IEC 42001:2023, SOC 2 Type 2 and SOC 3 for defined scopes. We also maintain PCI DSS v4.0.1 compliance and are pursuing CMMC Level 2. ## What comes next. Our work is far from over. We are continuing to expand our security frameworks and certifications, strengthen supply chain security, deepen industry collaboration, and address emerging risks like SIM box fraud and AI-enabled threats. *Advancing Cybersecurity at T-Mobile* is a marker of our work, not the final word on it. "Cybersecurity isn't a destination, it's a direction," said Mark Clancy, Senior Vice President & Information Security Officer, T-Mobile. "The progress in this report reflects a cybersecurity program that continues to evolve—one focused on strengthening our defenses, testing them against real-world threats and working with others to raise the security baseline across the broader ecosystem." That direction is guided by a simple principle: security must be seamless, equitable, and grounded in the needs of the people and businesses we serve. It is fundamental to how we build, operate, and continually strengthen America’s Best Network. [Read the full report , opens in a new window](https://www.t-mobile.com/content/dam/digx/tfb/us/en/non-dynamic-media/pdf/Advancing_Cybersecurity_at_T-Mobile.pdf?icid=TFB_TBW_P_20TFBEVRGN_048298566MT0R97786000) Cybersecurity metrics are based on T-Mobile internal data and the measurement periods and methodologies described in the report. Cyber threats continue to evolve, and no security measures can prevent all threats or incidents. ## Have questions about securing your business? 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