Questions about the Internet of Things: network-connected devices whose core functions do not include general-purpose interactive computing (e.g. cars, home appliances, consumer-grade routers) and whose potential software vulnerabilities are often overlooked by both users and manufacturers.
Questions tagged [iot]
131 questions
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HDMI with Ethernet: Network Security Risk?
I recently found out that HDMI cables (v1.4 and over) have ethernet capabilities for higher res output, so I want to know one thing:
Say I have a PC/laptop connected to the internet, and a monitor (not a smart TV) connected to the PC/laptop via an…
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BBB
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Why would device manufacturer refuse to publish root CA that signs devices but provides the CA via support ticket attachment
Background:
We got a few new model SIP phones. Each phone has built-in unique certificate issued by the manufacturer.
Previous models had certs issued by a different CA and that CA cert was published, so I could verify the phone's identity as it…
![](../../users/profiles/114338.webp)
AnyDev
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How to distribute bash scripts to multiple IOT devices securely
Here is the dilemma we're having: we developed proprietary bash scripts that do something, which is meant to be secure and closed source.
Our customers however will have to buy separate IOT devices and flash our software (i.e. bash scripts) into…
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AK_
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Are smart plugs safe? (Xiaomi in particular)
Are smart plugs safe, Xiaomi ones in particular (Zigbee and WI-FI versions)?
My main concern is that the plug is connected to Mi account and allows remote management. In case hacker gains access, can he reboot it dozens of times per second, so that…
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Peter
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How to secure smart home devices?
I'm interested in how I can secure my IoT devices from hackers. Particularly, I have a Xiaomi hub and a range of child devices for it. Also, how to secure devices that communicate using the Zigbee protocol.
I'm looking for some advanced tips. I…
![](../../users/profiles/132850.webp)
Peter
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How to secure an IoT device
Which is the proper way to prevent users to read sensible information stored inside an IoT device (e.g. source code / private keys...)?
Fully disk encryption is of course an option, but is it possible to boot the device without asking the user for a…
![](../../users/profiles/232723.webp)
Luca
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BLE IoT device as platform backdoor for hackers
I have a IoT device that works with BLE and uses a smartphone as a bridge to connect to a digital platform (cloud).
The communication between the IoT device and the platform is based in PKI.
The IoT device has only few privileges and services to…
![](../../users/profiles/231702.webp)
LazyTurtle
- 93
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Which kind of attacks could be done on CoAP protocol?
I'm a student and I'm studying the security of the CoAP protocol. So, thinking on the attack-surface my thought was about internal attacks (i.e inside the network) and the external attack (i.e. outside the network). Regarding them, considering the…
![](../../users/profiles/222425.webp)
furgius
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Using unencrypted protocols with IoT devices
Old IoT devices and some low-power devices are not capable of doing encryption or use weak encryption methods like TLSv1.0. What could be the risks of using such devices and unencrypted protocols like HTTP?
![](../../users/profiles/214893.webp)
Manasés Jesús
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Raspberry Pi with LAN, no WAN - Encryption Key Security - Zymbit/Zymkey
I am setting a up a Raspberry Pi that will be portable and often set up in areas without electricity or internet access and with poor cell service. I'd like to encrypt and decrypt data without retrieving keys from another server.
The solution I…
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superkayrad
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IOT secure data transfer
I have a question about a monitoring software architecture.
Think about 50 different locations in different cities. Assume that these locations are small plants.
In every location there are approximately 50 devices which produce small amounts of…
![](../../users/profiles/189019.webp)
bilgehanuk
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Security Advantages of Azure Sphere vs other embedded OS
I know Azure Sphere is new, and to my understanding Microsoft is targeting the embedded IOT market, but how is Azure Sphere more secure than other embedded RTOS systems like VxWorks or Integrity? Don't many of the embedded security measures…
![](../../users/profiles/151057.webp)
9Breaker
- 121
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Does LoraWan protocol's Over The Air Activation run Diffie Hellman?
I am looking at the LoraWan protocol specification and I want to capture the over the air activation of a device. So far I have seen the:
https://zakelijkforum.kpn.com/lora-forum-16/over-the-air-activation-otaa-8323
As it seems that it is using…
![](../../users/profiles/168285.webp)
Dimitrios Desyllas
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IoT Device user needs to perform task requiring Windows admin privilege
Our IoT device runs only our application and the device users can not launch additional apps. The IoT device users and IoT device admins both run under normal (non-admin) accounts with identical privileges.
Device admin users can launch the admin…
![](../../users/profiles/166706.webp)
Ken
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Is it safe to use an auto pay feature on my smart watch that stores card info?
(So guess what I got for Christmas...)
While I do appreciate the tech and some of the features in the smart watch, I am skeptical of it's biggest feature -- the Pay feature which essentially duplicates your credit card's magnetic info and stores it…
![](../../users/profiles/54659.webp)
whoami
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