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add ul certification

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blog/posts/secure-boot.md
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@ -129,4 +129,14 @@ As it is, boot authentication is mostly limited to regular computers and phones.
In a rare bit of good news, some manufacturers like Samsung are starting to incorporate the same [security technology](https://news.samsung.com/global/samsung-electronics-becomes-the-company-with-the-largest-number-of-level-diamond-iot-security-rating-verifications-by-ul-solutions-in-the-home-appliances-industry) such as their [Knox](https://www.samsungknox.com/en/secured-by-knox) into their appliances, which includes secure boot.
To me this marks a turning point from manufacturers of IoT products not caring about security at all to beginning to implement some basic improvements. Now, I still won't tell anyone to get a smart fridge, but if you do, at least it'll be more secure than before.
To me this marks a turning point from manufacturers of IoT products not caring about security at all to beginning to implement some basic improvements. Now, I still won't tell anyone to get a smart fridge, but if you do, at least it'll be more secure than before.
UL is an organization that does certification for companies and products, and their [IoT security certification](https://www.ul.com/resources/lot-security-rating-levels-guide) seems like a good indicator to go on if you want more secure IoT devices, especially since the description of the Diamond tier seems to suggest it requires some form of secure boot.
### Secure Boot in Cars
One of the most complex pieces of electronic equipment and also the most potentially deadly is cars.
Modern cars typically contain over 100 million lines of code, which is more than a passenger jet. A *lot* more.
This poses a problem when any component malfunctioning or being hacked could lead to property damage or deaths. Luckily, new