Earlier this week, I saw below message on WhatsApp
(Click for larger Variant)
What does this means to the User?
With end-to-end encryption, messages are scrambled as they leave the sender's device and can only be decrypted by the recipient's device. It renders messages unreadable if they are intercepted, for example by criminals.
My question is: Does this end-to-end encryption applies to individual chat and to group chat between Android-only devices or it also works on other platforms, Since WhatsApp is available on iOS, Windows Mobile also.