It would be amazing if you host a nextcloud encrypted systema with share and collaborating office suite like Google Docs. It could use the Free and OpenSouce Collabora Office (Its is LibreOffice on-line).

Some Nextcloud service already offer Collabora Office, but no one is swiss based and have seriously encrypt.

You ProtonMail guys could use the Collabora Office, its open souce and based on LibreOffice. It would be amazing and would beat services like GoogleDocs

Tresorit+Protonmail is the combo.
Both are secure, private, easy to use, and under Swiss legislation.

Personnally, it's Tresorit which first convinced me to leave all those US-based companies (Google, Dropbox, Doodle...), after leaving Spideroak (USA legislation) and CNRS-hosted-owncloud that I could use for free (after a known bug reversed one day of work).

So integrate with Tresorit, partner with them, even buy them ultimately, but focus on what's missing to users, not on what already exists.

This is already provided by other services, so I dont see rhe point. I use Tresorit, which works great. Please focus on things that do not exist. Better integrate with existing private/secure services, and/or do a commercial partnership with them, or buy them if you have big ambitions.

Only if integrated with Protonmail the same way Yandex.disk and Yandex email work, where you can save attachments, etc.

Add geens.com to the list of similar services

I'm all for it.
I'm curious to hear opinions on nCryptedCloud, which I currently use. Any better recommendations?

As a couple of others have pointed out, there are several products that have been doing this for years. SpiderOak & Tresorit offer encrypted zero knowledge storage.
An easy to set up solution for keeping your files current on all of your devices is Syncthing. It is a peer to peer sync instead of a cloud, but it is free (FOSS), encrypted transfer, fast, and the only limit on data is your physical storage space.
I don't see what ProtonDrive would add that is unique, and it would be behind its competition.

If the offered a hosting of nextcloud with apps that i can add i might be interested. But if their own service probably not be interested.

Just use Owncloud, NextCloud or similar hosted from a NAS you run at home. You're in control and have the option of not opening it up to the web.

I've been running this succesfully on FreeNAS for 8 months and have had no issues.

https://owncloud.org/
https://nextcloud.com/

Wow! This really exploded in votes!

Anyway, @Anonymous, I think that it's different for ProtonMail since ProtonMail already offers an email service. Since they already have the technology to encrypt emails, it would probably be trivial to create an encrypted ProtonDrive that shares storage with ProtonMail.

As for the competition, I think the users of ProtonDrive will primarily be ProtonMail users and ProtonDrive will attract more users for both ProtonMail and ProtonDrive.

And I don't see how ProtonDrive would open ProtonMail up to more hacks. Isn't ProtonDrive just as secure as ProtonMail?

Overall, it seems like a pretty good idea to me! :)

Boxcryptor : several cloud storage service compatible, https://www.boxcryptor.com/en/

Tresorit, SpiderOak, Mega...

Just use Boxcryptor.

https://www.boxcryptor.com/en/

Please consider offering a hyper secure Cloud so.

I support this idea. Recently I decided to change Syncwerk(old seafile) for my cloud service provider. Since there are very limited trustable option I decided to use Mega(hey at least I like Kim Dotcom, he is a lovable person). But if Protonmail were to open cloud storage service, I would switch in a heartbeat.

I don't understand why many users of ProtnMail are suggesting products which will only open the company up to hacks.

Firstly, there are several really good encrypted based online/cloud/storage drives available to users which offer client and cross-platform compatibility.

Secondly, can you imagine the cost Proton will set them at if they did have such a service, I don't think they'll be able to compete.

To give you one perfect example of a similar minded company which let go of its service. GoldenFrog which I'm sure you aware of also offers a VPN service and they also at one point for a number of years offered a secure storage service as well which was quite good but they deprecated a couple of years ago probably because not all of their many VPN customers appreciated it and they're weren't just many customers globally in general.

Developing/engineering a storage service would probably break the team.

here are some good alternative to GMails based product:

https://spideroak.com/

https://tresorit.com/

https://mega.nz/ (requires a bit more investigation)

If ProtonMail did create such a service I think it would looks something like this, it doesn't particularly match the others above -
https://www.egnyte.com/corp/plans_pricing.html

If the team really did contemplate this though I'd strongly suggest getting advice from GoldenFrog as to why they deprecated DumpTruck which is what they called their service, perhaps you could even purchase their code from them if you were still insistent on engineering such a service.

It's not and urgent problem to solve, Tresorit is a trustworthy company that already provides cloud storage and as far as I know it is very secure.

I would welcome hosting services from ProtonMail as well. In the meantime you can safely switch to Yandex Drive which offers pretty much the same environment as Google drive and is secure enough.

Hi Bob, during their last DDos hack it was sort of evident that the hackers couldn't gain access to the mailbox so I don't see any real advantage to have this feature.

Great for that particular software but maybe not for email.

This would be perfect! Encrypted Proton Drive with a separate IOS and android application so we can have a safe place to store all our stuff!