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Alexander's THOTCON presentation touched on the 5G connectivity that many predict IoT will integrate, but in exploring the viability of alternatives to his setup, Davis quickly gravitated toward Alexander's proposal.

Connecting to IoT devices via 5G certainly would keep them away from home users' laptop- and smartphone-bearing networks, Davis acknowledged, but it would present other challenges. As anyone who has ever browsed Shodan can tell you, always-on devices with seldom-changed default credentials connected directly to the public Internet have their downsides.

"Having your IoT devices isolated with your home-based devices is great, but there is still the possibly of the IoT devices being compromised," Davis said. "If they are publicly accessible and have default credentials, they could then be used in DDoS attacks."

Enabling IoT for direct 5G Internet connections doesn't necessarily improve the security of end-user devices, Davis cautioned. IoT owners will still need to send commands to their IoT devices from their laptops or smartphones, and all 5G does is change the protocol that is employed for doing so.

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"IoT devices using cellular 4G or 5G connections are another method of isolation," he said, "but keep in mind, then the devices are relying even more on ZigBee, Z-Wave or Bluetooth Low Energy to communicate with other IoT devices in a home, which can lead to other security issues within those wireless protocols."

2020-05-07 19:32:47, views: 752, Comments: 0