Field Test Shows Verizon Leads 5G Coverage in Rural America, T‑Mobile Lags Behind AT&T
What Happened — Over a three‑day road trip through small towns and farmland, a ZDNet Security reporter measured 5G signal strength from AT&T, T‑Mobile, and Verizon using three identical Samsung Galaxy S26 Ultra devices. Verizon consistently delivered the strongest signal, AT&T was second, and T‑Mobile was the only carrier that failed to register a usable 5G signal in many rural locations.
Why It Matters for TPRM —
- Rural connectivity gaps can affect remote‑work reliability, IoT device uptime, and supply‑chain visibility for third‑party vendors.
- Inconsistent 5G coverage may expose organizations to increased reliance on legacy networks, which often have weaker security controls.
- Vendor risk assessments that assume uniform high‑speed connectivity could underestimate latency‑related security controls (e.g., VPN performance, cloud access).
Who Is Affected — Telecommunications (TELCO) sector, enterprises with remote sites, IoT/edge deployments, and any third‑party relying on carrier‑grade 5G for critical operations.
Recommended Actions —
- Review contracts with telecom providers to confirm service‑level expectations for rural locations.
- Validate that fallback mechanisms (e.g., LTE, satellite) are in place where 5G coverage is weak.
- Incorporate connectivity‑performance testing into third‑party risk assessments, especially for vendors operating in non‑urban environments.
Technical Notes — The test used the nPerf app on Samsung Galaxy S26 Ultra phones with carrier‑provided eSIMs. No security vulnerability was discovered; the findings relate to network signal strength and reliability, not an exploit. Source: https://www.zdnet.com/article/5g-in-rural-america-google-pixel/