TECH TALK
1. Research: Before purchasing any IoT device, find out if the manufacturer has any cybersecurity built-in on the product you are considering. Make sure that you can change the default password (probably the easiest way for hackers
to gain control of a device). Does this product allow for automated updates and/or security patches? Any device which does not have some sort of capability in regards to software updates over time should be considered suspect. Use automatic
updates if they are available, and if they are not, only install updates from known, reputable sites. After you first install this device, make sure to verify that the software is the latest version, and if not, take the time to update it.
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2. Use strong passwords: You have read this advice for years, and you must apply it to your home and business IoT devices as well. Do not repeat passwords, use complex uppercase/lowercase and numeric and special characters.
3. Turn off your IoT devices when not in use, or, periodically, if they are always on: The reason for this is that most malware embeds itself in memory and can often be expunged via merely by cycling the power. If a device is not going to be used for a while, it should be turned off. For devices that are in constant use, they should have their power cycled regularly to clear out any potential malware and just to bring them back to an initial operating state.
4. Do not allow for a single point of failure: It only takes one vulnerable IoT device for a hacker to be able to access your entire network, and perhaps even reach other networks (as in when you work remotely). Besides using strong passwords and making sure that your devices and computers have the latest software, most routers will allow you to create segmented networks. Most enterprises make full use of this, but home users should also consider this. Many routers already ask you when you are doing your initial setup to create a guest network, which does not have access to some of your computers and devices (this is a must for any home which allows visitors to use its Wi-Fi connection). Another idea is to create a third network which only contains your IoT devices and/or your smartphones. If you are not techno-savvy, router
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DOMmagazine.com | july 2020
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