Keybase is dead. In the PR they were explicit they were hired to work on Zoom and not continue working on Keybase. Luckily there is keys.pub

Is keybase fully open source? Or is the server closed source?

The server stills closed but seems there're people saying the server-side is not needed(!) to trust the platform.

https://www.reddit.com/r/Keybase/comments/77c241/keybase_why...

Why (!)?

Of course servers are untrusted. If you think you need to see the server source then any trust you have is mistaken.

Same as with HTTPS. If you think you need to trust the MITM, you've already lost

I think you don't need to trust the server just if you can audit the frontend and assure it does not share any sensitive information with the server-side. If they apply the concept of data minimisation, decentralisation and distribution properly, there are fewer risks involved.

But, if the server manages sensitive information, yes. It is preferable to audit the server code to understand how they handle the lifecycle of the information.

"If you think you need to see the server source then any trust you have is mistaken."

Sorry but I don't agree. I trust in systems I can verify. Trust without verifying is not trust, it is faith.

OK, but that doesn't help you when they shut down the server, which I think is what this thread was about? That zoom purchased it as an aquihire to have staff work on zoom, and isn't committed to the platform.

Agreed, but a server turned off has lower risks to leak information. And I think also they bought the expertise of the team to improve zoom, more than getting the solution per se. It will take some months to have this question answered (about what will really happen to keybase)

Clearly, a product which has been discontinued has less of a chance of violating your privacy, that's true.... I think there are a couple different non-intersecting conversations going on here...

But was it discontinued?

I was looking into their terms (https://keybase.io/docs/terms) and they should notify before it. And seems my account is up over there.

Paying leaves a verified trace though.

True, but they can't know the content at all.

-No worries, they'll just assume the content is malicious, then. (/s. I hope.)

It sounds like bullshit. I don't think the reason to avoid keybase is necessarily because it draws their security from authorities into question, but it does call into question if a company that would say something that looks like impulsive nonsense is someone you want to trust.