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Dropbox Transfer follows the same encryption protocols as the rest of Dropbox. While at rest, all Dropbox files are encrypted, but end to end encryption would severely limit the functionality of heavily used features like previews and search.

We're always looking to improve and certainly open to suggestions (we have a feedback form on the Transfer page just for these kind of suggestions that the Transfer team actively monitors!).

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Not using end to end encryption for personal files in 2020 is fail by design. It's not only a problem that people at Dropbox can read the content, numerous data breaches have shown that this is not a good choice and never will be.

The sad truth is that users usually don't understand the implications until it's too late.

Features like search and preview can be implemented at the client side as well and synchronized between trusted peers. This might be harder to do but it's possible.

Please don't get me wrong, I admire the technological achievements done at Dropbox and their excellent engineers. But sooner or later they need to switch to a secure model as more and more people gain awareness of the security and privacy implications.

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