[sauere]

Does this include file transfers, if so, how?

Curious because when sending a .webm video from an Android device to a iOS device, the video file was transcoded on WhatsApp servers and then delivered to the iOS device as H264/mp4 (since iOS can not play .webm files)

This should no longer be working.

[epimenov]

The whitepaper (https://www.whatsapp.com/security/WhatsApp-Security-Whitepap...) claims that the attachments of any type are encrypted

[whyoh]

It definitely should include file transfers, according to their blog post: https://blog.whatsapp.com/10000618/end-to-end-encryption.

Are you sure encryption was active, both devices on the latest version? Is there a chance that the conversion was done on either of the devices?

Otherwise, yeah, something isn't right.

[odinduty]

Conversion is done by the devices I think.