That seems less like them decrypting encrypted archives and more like the zip format not encrypting filenames so they’re easily read from the zip’s metadata.
Which is still a privacy violation, to be clear, but not nearly on the same scale as somehow obtaining and using your passwords to decrypt data you yourself encrypted.
They are visible, you can test this yourself. Open a password-protected zip with 7zip and it’ll show the file list even without entering the password. The “encrypt file names” checkbox doesn’t even appear when creating an archive if the zip format is selected, so I’m not sure the format supports it.
They not only look at your files but will decrypt any encrypted zip files to see what you have.
https://news.ycombinator.com/item?id=37086814
That seems less like them decrypting encrypted archives and more like the zip format not encrypting filenames so they’re easily read from the zip’s metadata.
Which is still a privacy violation, to be clear, but not nearly on the same scale as somehow obtaining and using your passwords to decrypt data you yourself encrypted.
That was what someone claimed but it isn’t true. Filenames are not accessible in an encrypted zip.
They are visible, you can test this yourself. Open a password-protected zip with 7zip and it’ll show the file list even without entering the password. The “encrypt file names” checkbox doesn’t even appear when creating an archive if the zip format is selected, so I’m not sure the format supports it.