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Attack of the Smart Refrigerator
July 6, 2018
We've all heard about refrigerators that automatically order groceries when they sense the current
supply is running low or out. These smart refrigerators are what people usually point to when
giving an example of an "internet-of-things" (IoT) device. Briefly, an IoT device is a physical device
connected to the internet wirelessly that transmits data, sometimes without direct human
interaction. I suspect most of you have at least one of these devices already operating in your home
or office, whether it's a wireless router, baby monitor, or voice-activated assistant or "smart" lights,
thermostats, security systems, or TVs.
Experts are forecasting that IoT device manufacturing will be one of the fastest growing industries
over the next decade. Gartner estimates there were more than 8 billion connected IoT devices
globally in 2017, with about $2 trillion going toward IoT endpoints and services. In 2020, the
number of these devices will increase to more than 20 billion. But what security are manufacturers
building into these devices to prevent monitoring or outside manipulation? What prevents someone
from hacking into your security system and monitoring the patterns of your house or office or
turning on your interior security cameras and invading your privacy? For those devices that can
generate financial transactions, what authentication processes will ensure that transactions are
legitimate? It's one kind of mistake to order an unneeded gallon of milk, but another one entirely to
use that connection to access a home computer to monitor one's online banking transaction activity
and capture log-on credentials.
As one would probably suspect, there is no simple or consistent answer to these security questions,
but the overall track record of device security has not been a great one. There have been major
DDOS attacks against websites using botnets composed of millions of IoT devices. Ransomware
attacks have been made against consumers' home security systems and thermostats, forcing
consumers to pay the extortionist to get their systems working again.
Some of the high-end devices such as the driverless cars and medical devices have been designed
with security controls at the forefront, but most other manufacturers have given little thought to the
criminal's ability to use a device to access and control other devices running on the same network.
Adding to the problem is that many of these devices do not get software updates, including security
patches.
With cybersecurity issues grabbing so many headlines, people are paying more and more attention
to the role and impact of IoT devices. The National Institute of Standards and Technology (NIST)
has begun efforts to develop security standards for cryptology that can operate within IoT devices.
However, NIST estimates it will take two to four years to get the standard out.
In the meantime, the Department of Justice has some recommendations for securing IoT devices,
including:
• Research your device to determine security features. Does it have a changeable password?
Does the manufacturer deliver security updates?
• After you purchase a device and before you install it, download security updates and reset any
default passwords.
• If automatic updates are not provided to registered users, check at least monthly to determine
if there are updates and download only from reputable sites.

• Protect your routers and home Wi-Fi networks with firewalls, strong passwords, and security
keys.
I see IoT device security as an issue that will continue to grow in importance. In a future post, I will
discuss the privacy issues that IoT devices could create.

Fed

By David Lott, a payments risk expert in the Retail Payments Risk Forum at the Atlanta

• July 6, 2018 in
◦ cybersecurity
◦ fintech
◦ identity theft
◦ payments risk
◦ privacy
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