I hope you're not the technical lead for your company. If so, you should hire a security and privacy consultant.
> In regards to your browser history, this is not shared nor stored on our servers. You have to specifically opt in to allow access to the History permission, and this is only so you can search your history. Again, nothing stored on the servers.
If you have my tab info, you have my history. It doesn't matter if you tell me you're deleting it. You could have logs, either intentionally or unintentionally.
> is mundane and harmless, except of course the URL
A URL IS NOT MUNDANE AND HARMLESS. I can't stress that enough. I almost never use all-caps, but this is something that is actually something worth screaming.
It's very easy to turn even a short URL history into a unique identifier for someone. Once you can "fingerprint" them that way, you can find out what they're shopping for, which bank(s) they use, and even private medical information.
> Also clearly outlined in the privacy policy is that this information is encrypted, secure, and never shared or sold to third parties.
Encrypted in transit or at rest? Who has the encryption key? What does "secure" mean to you, and who is certifying that it's secure? Do you have a CTO with a track record of building secure products? Who exactly is running your company, anyway?
As far as never selling to third parties, that means exactly nothing. You could be piping all of our data into Google or any other third party without selling it. If it leaves your servers, it doesn't matter whether it's sold or not -- it's still leaked.
> Furthermore, we are not storing this information just because. Partizion stores your collections of tabs so that you can access them from any device and any browser. This is something that cannot be achieve by using chrome's storage API or syncing.
From literally the first bullet point on the chrome.storage documentation:
> "User data can be automatically synced with Chrome sync"
So again, you seem to lack even a basic understanding of the technical details of this product. If your best explanation for storing extremely sensitive data in your cloud is that you didn't read the Chrome extension docs carefully, or you don't understand Chrome's APIs, then you shouldn't be in this business.