NTT Docomo Business, the group’s global connectivity unit Transatel and cybersecurity player Zscaler moved to grasp an opportunity in IoT protection by providing a centralised SIM-based set-up the Japanese giant believes overcomes many weaknesses in device defence.

The Cellular SASE for IoT service uses the multi-SIM capabilities of Transatel’s network, the zero-trust security nous of Zscaler and NTT Docomo Businesses’ managed services products to secure the link between IoT devices, cloud and internal IT settings.

NTT Docomo Business stated the service tackles current inherent weaknesses in IoT device security including the “limited processing power and capacity” units have to run systems offering protection from “malicious communications” and unauthorised access.

It noted some devices are “vulnerable to cyberattacks”.

The operator unit explained centralising security using the SIM removes the diversity of device makers and specifications from the protection equation, asserting the approach is simpler and safer than deploying VPNs or embedding “software on each device”.

NTT Docomo Business highlighted “multi-carrier route redundancy” as another selling point, a nod to the multiple markets an IoT device might cross and the hassle of arranging connectivity in each one.

It emphasised secure cloud communications also reduce “the attack surface”.

Nathan Howe, VP of emerging technologies at Zscaler, said the system would enable “customers to deploy on a large scale, based on consistent policies”.

The operator stated the trio would continue to collaborate to improve the defences offered.

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