spectre-meltdown-checker VS Cryptomator

I tried the latest SMC from https://github.com/speed47/spectre-meltdown-checker and all were in green. :-)

How is this project different spectre-meltdown-checker?

OpenBSD will disable all but the first thread on any Intel processor by default. I'm assuming that these models are too old to have microcode updates addressing the Spectre exploits (Meltdown, Foreshadow, Fallout, Zombieload, RIDL etc.), and disabling SMT/HT might be the most secure thing to do by default.

This script produces a good assessment of Spectre problems for a wide variety of CPUs. I know that they are difficult to exploit, and the mitigations are disabled by many because of their performance impact.

https://github.com/speed47/spectre-meltdown-checker

You can confirm the status of the mitigations using InSpectre for Windows, or Spectre & Meltdown Checker if you're on a unix based system.

You can run https://github.com/speed47/spectre-meltdown-checker

He's probably referring to the class of vulnerabilities checked by this script: https://github.com/speed47/spectre-meltdown-checker. It's not just Intel CPUs that were affected, AMD and ARM also have some vulnerabilities (I just ran it on an ARM v7 to see) although maybe not as many.

utilise microcode updates (should be by default, check)

the best way to do this is with https://cryptomator.org

Before putting anything on a cloud service I would recommend 3rd party tools, like Cryptomator, to encrypt folders and such, then upload to a cloud service.

I use Cryptomator - https://cryptomator.org

I've used countless encryption "schemes" over the years, from True/Vera-Crypt to encrypted sparse bundles/images, and none have ever really felt right.

These days i tend to use Cryptomator[0] instead. It accomplishes what none of the others could do, which is transparent encryption across devices.

With Cryptomator, i simply create a vault somewhere in the cloud, stuff data in it, and i can access it from my laptop, phone or tablet, and not think much about it. It integrates into the normal file browsing APIs, and doesn't get in the way.

Because it does "per file" encryption, it also doesn't need to download a 20-100MB chunk from the cloud before decrypting, so it's rather fast (depending on file size of course).

[0]: https://cryptomator.org/

Cryptomator's arguably the most popular encryption software for cloud storage (you can give yourself zero-knowledge encryption by using them) - it's actually what they specialize & focus on (cloud encryption). It's 100% open source and Free to use on computers. On phones I believe it's just a 1-time fee of a few bucks ($13-14, then you have it forever) - note: their iOS offering is still new, so may be a bit unpolished at the moment.

This is the solution: https://cryptomator.org/

Cryptomator. It is made for uploading files securely to cloud storage, but works locally, is easy to use, and completely free for your use case.