What Happens Without IoT Firmware Security?
If you fail to properly implement IoT firmware security, the consequences can be severe.
For example, there is a greater risk that hackers may exfiltrate valuable information from a device if the proper security measures aren’t in place, leading to intellectual property (IP) theft. They may also be able to control the deployed system remotely, causing it to behave in unexpected and even dangerous ways.
Some of the concerns regarding faulty IoT firmware security include:
- If physical access is granted to the device, then you need to assume that all of the device’s code and hardware would be available to a malicious actor. In particular, be careful using client-side SSL if an attacker is able to get physical access to a device.
- You should not be able to escalate to different levels of user access. The IoT devices at the edge of the network should not have access to information or devices that it doesn’t explicitly need access to.
- Encryption is a possibility for IoT firmware to protect sensitive information in plaintext, but you need to make sure you choose the right encryption algorithm. Cryptography is a constant battle between cryptographers and attackers, and many algorithms previously thought secure have been found to have weaknesses. There is promising research being done into encryption algorithms that can be implemented on resource restricted devices.
Consider the Tradeoffs
There are many considerations when it comes to security for low-power IoT devices, some of which differ from IoT security best practices at large. If you plan on using low-power devices in your IoT deployment, it’s crucial to work with an expert IoT security partner who knows the security tradeoffs that are worth making.
At Very, we create secured low-power IoT devices that are capable of protecting our clients’ sensitive information. To learn more about the IoT development process, check out our complete guide to IoT development.