this post was submitted on 20 Mar 2026
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Privacy
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The only data they store are account creation time and last connection time.
https://signal.org/bigbrother/district-of-columbia/
The thing if someone has memory access Signal doesn't need to store anything, transiting data is now available. For example all of your contacts when doing contact discovery. It used to be a simple hash, something for which you could build a rainbow table in a few hours, at the worst. It's lightly better now, but still.
Don't take it from me, take it from Moxie:
https://signal.org/blog/private-contact-discovery/
It also doesn't really matter if the software itself can easily be tampered with in memory by the hypervisor. Like I said, they are putting a lot of trust in Intel SGX.
And let's not even get into the digital sovereignty issues, and financing of right wing billionaires. Yes, running on AWS is an issue. It's multiple issues even.
https://signal.org/blog/private-contact-discovery/
... Providing you trust Intel SGX (and AWS for giving them access to actual SGX and not just emulating a compromised instruction set)
😃
conspiracy begins...
What conspiracy? CPU bugs aren't a conspiracy, they are just a fact. Amazon's involvement with American three letter agencies isn't a conspiracy, it's a fact.
Yea but if you worry about CPU bugs there is no such thing as trust, no matter who owns the infrastructure. Any software can have critical bugs and any system that can be accessed remotely can be compromised. Personally I'd trust the people at Signal that they have made a reasonable architecture section to balance availability and privacy
I don't take anything from someone I don't trust that also explicitly doesn't use warrant canaries because he says they don't work in contradiction to every legal authority.
It's also an issue that they run the signal server on one single AWS region.
It isn't hard or even all that expensive to run on multiple regions.
It's not me you need to tell this though.