Sure do. Hackers can find a vulnerability in IoT devices faster than manufacturers can: 1. Detect it's there, 2. Fix it, 3. Post an update, 4. And most of all, have an end user actually update the device/install it. The alternative to an addressable IoT box is to have an off-device cloud intermediary (which is better for us behind the double-NAT, btw) - depending upon how secure that cloud is kept. My Carrier thermostat is like that. However, most of the ones I see are complete disasters from a security aspect, including AmazonAWS, Google, and Microsoft. The ones hackers love are the ones like AmazonAWS that use dynamic IP addressing because they're hard to block.
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