> If Signal-the-app did a WhatsApp and started blocking forwarded messages, or blocking messages that contained a blacklisted domain etc, I think very little wo

> If Signal-the-app did a WhatsApp and started blocking forwarded messages, or blocking messages that contained a blacklisted domain etc, I think very little would happen and it might take a while for people to even notice. Why would it be different for, say, Sendmail? I mean, I agree, but isn’t this the heart of why “open source” is not a meaningful differentiator? (Taviso wrote something similar about reproducible builds and “bugdoors” here a while ago: https://blog.cmpxchg8b.com/2020/07/you-dont-need-reproducible-builds.html https://blog.cmpxchg8b.com/2020/07/you-dont-need-reproducibl....) My claim is not at all that it would be noticed immediately. My claim is that distributing source code doesn’t help for exactly the same reason. > which might explain why you keep mis-characterizing my position. Please RTFA and then opine. The section on threshold signed auditable builds isn't even long or complicated, it's a few paragraphs at most. It’s never stopped me before. ;) More seriously: I don’t disagree with the proposal, but it strikes me as less radical than you suggest, for a few reasons: - It seems to me you can already do this with signed git commits plus—what we talked about before—reproducible builds. - You still have to incentivize review. For a significant project, yeah, you might get it (and it’s cheaper than the dev time to maintain multiple overlapping projects, I guess). But are you going to get it for every, I dunno, NPM package to make text a pretty color which turns out to be critical infrastructure? Nah. - As Tavis points out in the above link, source code is not at all a panacea. So, yes, if people want to do multiple-auditor-signed updates, I’m all for it. App stores should make it easier than they do today. Agreed? > CT… I guess I no longer understand what we’re disagreeing about. To be clear, I’m all in favor of enabling multiple auditors to sign binaries, I guess. I don’t think it solves major problems in most cases, nor do I think source code access is a panacea for supply chain attacks. But if people want to do it, sure, I guess?