Proton has opened sourced everything so far and I would expect them to do that here. They have whole pages written on why they open source everything and why that helps privacy.
Nothing is mentioned other than "proprietary system". Probably meaning that both ends are closed source. I don't see how I can verify whether it respects my privacy or not. I don't see a reason to implement this instead of mCAPTCHA, which is fully FOSS.
If you slap "privacy" in the marketing material you can sell a more expensive product, with less features, and communities such as this one will pay anyway.
So that's why. It's in their own benefit to make more products rather than improve existing ones.
That can't be done without a massive, massive amount of engineering hours well beyond proton's size. There's a reason only huge software companies like Google or Microsoft are able to offer that.
Other than making the web tedious to use, my biggest CAPTCHA complaint is that it puts the main providers in a position to monitor everyone's web use. The blog post doesn't address that, but it does say this:
No third-party services
Perhaps they mean it's self-hosted? That would be very welcome. It might require open source code to catch on, since many site owners are uncomfortable running mystery code on our servers. That would be very welcome, too.
Nice, but captchas are never a good measure to avoid bots, only to annoying users, apart from spying them, if it is from Google. Long before AI, bots could solve captchas better than humans. It is a clearly obsolete method. Apart the system used by Proton is impossible for blind users, Google captcha at least had an auditive captcha too.
It does stop bots, but only extremely simple bots that for instance scrape data. That's mostly it though, more sophisticated bots can easily beat Captchas
This is the problem. I remember a very simple method to avoid spambots on a forum with great success.
It is based on the following idea:
A spambot or even a spammer necessarily uses a disposable email to register. These emails are usually not valid for more than 10-30 minutes, just to be able to receive the confirmation link.
In this forum, the sending of the confirmation email has been delayed for half an hour due to this and with this the spam problems have ended. A normal user, if they really want to sign up, waits this time without problems.
Then the usual 50 messages before being able to put a link as an additional measure. Simple and without third party apps.
I often won't touch websites with captcha as its used to train ai for google so if I see open source captcha solutions of which I doubt I will see as often as id like as googles strong hold
FUCK ALL CAPTCHA i want to develop a program not to solve captcha but to actually break them then when they go down bypass them some how some way one day i swear i will
Proton is trying to do too many things and can't excel at doing one thing. It's getting too big beyond its capabilities which means services are going to suffer at a lower quality.
If the want blanket trust from users, remove the VPN login to make it anonymous and change the VPN code to remove all anti-features and comply with native F-Droid, other RiseUpVPN is the only choice for everybody to use.
I have to admit that I don't know enough about any of this to be sure I'm reading in the right way. Is it "known malware, free VPN" or "known malware-free VPN"?
It's one of the most transparent services, there's this neat video examining the available free VPNs by Techlore that was coincidentally made very recently: peertube/piped
Accoding to F-Droid build service, it says ProtonVPN depends entirely on non-free network services, which means:
"This Anti-Feature is applied to apps that promote or depend entirely on a Non-Free network service which is impossible, or not easy to replace. Replacement requires changes to the app or service. This antifeature would not apply, if there is a simple configuration option that allows pointing the app to a running instance of an alternative, publicly available, self-hostable, free software server solution."
Compared to RiseUpVPN source code which has zero anti-features