This would be an amazing feature to have!

One of the things that still prevent me to move away from OneDrive, that would be awesome to have it!

Please add this feature!

be able to set a password is a priority like a private internal vault password to add a double layer encryption on some specific folder! 3 failed attempts should require full login again. or where's the privacy?

I would love to have that feature, too. Preferably with a whole folder, not only a file.

This is very important

This is SO important and most services already have something like this. I'm very surprised it isn't already implemented. Please do this!!

This is an important feature, that adds extra security to very important files (id, passport, medical records) when a device is stolen, which is very common in some places of the world. Something that would work as well is compatibility with cryptomator. It would be nice to be able to use cryptomator synced with proton drive in my iPhone.

I agree, a locked folder similar to how OneDrive has a secure vault would be helpful. A use case would be on the mobile apps. That locked folder has keys and id photos that are not accessed on a regular basis, but you want to keep the Proton Drive app unlocked without a passcode so that other files can be accessed by the system for sharing, editing, by the Files app on iOS, etc.

I think having an additional folder called "vault" and required another password separate from your login password would be great. Give an additional layer of security for those files, like medical or passport info or whatever. All without having to use cryptomator. Especially when it comes to mobile devices.

To enhance Proton Drive's appeal and provide users with an added layer of security for sensitive files, consider introducing a "Personal Vault" feature. Here's how it could work:

Enhanced Security:

Require additional verification (e.g., PIN, fingerprint, face recognition, or 2FA) for access.
Automatically lock the vault after a set period of inactivity.
Encrypted Protection:

Ensure files in the vault have an extra layer of encryption, reinforcing Proton Drive's commitment to privacy and security.
Cross-Device Accessibility:

Allow the Personal Vault to sync securely across devices, making it easy for users to access their sensitive files on the go.
Storage Integration:

Include files in the vault within the user's existing storage quota, but offer clear organization and dedicated space for critical documents.
Use Cases:

Perfect for securely storing sensitive files such as identification documents, financial records, or private photos.
By offering this feature, Proton Drive would align with the needs of privacy-conscious users seeking a secure and user-friendly platform to safeguard their most important files.

yes so that i dont have to encrypt the file with cryptomator.

Adding a passcode to proton drive and proton mail just like in proton pass would be a great feature. 3 wrong attempts then it logs you out and will require your full password +2FA. This feature would be very useful to people who have other people around their computer at times.

Need this for extra level of security if mobile phone is lost and someone managed to get access to proton drive

Intuitively I am experimenting with ideas of "pairing" Proton Drive with Tresorit. Both zerotrust. Both Swiss based.

This is essential.
I have my proton drive mounted in my PC.
In OneDrive I always had this functionality.
Used to store all kind of personal documents, which I don't often access, but are critical to keep safe (Passport, Recovery codes, legal stuff etc)

This would be a great secondary security measure for critical or sensitive documents. OneDrive has this with their "Vault" feature

Not sure if this is the same issue, but there's certainly an overlap. I just installed the Drive app. I keep my private documents in a Veracrypt drive, which I only mount when I need it. I figure that if my laptop gets stolen I've got an extra level of security against scoundrels getting my data. But the Drive app will not allow me to assign a folder on this drive as my sync folder - it says "Drive type not supported".

Please Proton - is it possible to support this type of Drive?

I think this might put some users at ease when you sync with your devices. Even if you have your folders synced to e.g. your phone, someone with access to the unlocked device can't open certain very private folders without an extra password. Currently I use verycrypt and picocrypt for that, so IDK how important this feature really is, but might be good to have.

Don't care about this at all, what's the use exactly? Proton already uses Zero Knowledge end to end encryption and you either trust that or not.