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TechRadar
TechRadar
Efosa Udinmwen

Got no signal? This devious cyberattack can downgrade your phone from 5G to 4G without you knowing

Google Huawei OnePlus Samsung
A representational concept of a social media network.
  • 5G phones can be silently downgraded to insecure 4G, leaving the device exposed
  • The exploit works without setting up expensive and complex fake towers
  • Tested smartphones include flagship models from Samsung, Google, Huawei, and OnePlus

In late 2023, researchers uncovered a set of flaws in 5G modem firmware from major chipmakers, including MediaTek and Qualcomm, collectively named 5Ghoul.

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