Tuesday, 2nd June 2020

IoT devices now prevalent in 40 per cent of households

Avast and Stanford University present findings from the largest empirical analysis of the state of IoT devices globally.

Avast, in collaboration withStanford University, has uncovered that about 40% of households across the globe now contain at least one IoT device. In North America, that number is almost double, at 66%, bringing with it an associated growth in cybersecurity risks.

The findings have been published in a new research paper, being presented at the Usenix Security Conference 2019, “All Things Considered: An Analysis of IoT Devices on Home Networks.”

The research is the largest global study to date examining the state of IoT devices. Avast scanned 83 million IoT devices in 16 million homes worldwide to understand the distribution and security profile of IoT devices by type and manufacturer. The findings were then validated and analyzed by research teams at Avast and Stanford University.

“The security community has long discussed the problems associated with emerging IoT devices,” said Zakir Durumeric, assistant professor of computer science at Stanford University. “Unfortunately, these devices have remained hidden behind home routers and we’ve had little large-scale data on the types of devices deployed in actual homes. This data helps us shed light on the global emergence of IoT and the types of security problems present in the devices real users own.”

The research reveals a complex picture of the IoT ecosystem and subsequent cybersecurity challenges in homes across the world. Key findings include:

●North America has the highest density of IoT devices of any region, with 66% of homes possessing at least one IoT device, compared to the global average of 40%.

●Even with over 14,000 IoT manufacturers worldwide, 94% of all IoT devices are manufactured by just 100 vendors.

●Obsolete protocols like FTP and Telnet are still used by millions of devices; over 7% of all IoT devices still use these protocols, making them especially vulnerable.

Users contributed data to the study using Avast’s popular Wi-Fi Inspector, which scans home networks for vulnerabilities and identifies potential security issues that open the door to threats. This feature checks the status of your network, devices connected to the network, and router settings. Wi-Fi Inspector helps secure your network to prevent attackers from accessing it and misusing personal data.

Distribution of IoT vendors around the globe

The paper further explored the distribution of global IoT vendors. While there is a very long tail of over 14,000 global IoT vendors, market dominance is limited to only a few.

“A key finding of this paper is that 94% of the home IoT devices were made by fewer than 100 vendors, and half are made by just ten vendors,” says Rajarshi Gupta, Head of AI at Avast. “This puts these manufacturers in a unique position to ensure that consumers have access to devices with strong privacy and security by design.”

By hardening these devices against unwanted access, manufacturers can help prevent bad actors from compromising these devices for spying or denial of service attacks.

Significant security risks not being addressed

As part of the study, Avast identified that a significant number of devices use obsolete protocols such as Telnet and FTP. 7% of all IoT devices support one of these protocols.

This is also the case for 15% of home routers, which act as a gateway into the home network. This is a serious issue as when routers have weak credentials they can open up other devices and potentially entire homes to an attack.

There is little reason for IoT devices to support Telnet in 2019. Yet, the research shows that surveillance devices and routers consistently support the protocol. Surveillance devices have the weakest Telnet profile, along with routers and printers. This aligns with historical evidence, such as the role of Telnet in the Mirai botnet attacks, that suggests these kinds of devices are both numerous and easy to compromise.

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