Not end-to-end, at least not by default. There is an end-to-end option you can explicitly activate but it apparently doesn’t support video calls: https://supp

Not end-to-end, at least not by default. There is an end-to-end option you can explicitly activate but it apparently doesn’t support video calls: https://support.skype.com/en/faq/FA34824/what-are-skype-private-conversations https://support.skype.com/en/faq/FA34824/what-are-skype-priv...