Skype[1] and Nokia before they were bought ? There are many more... [1] https://berthub.eu/articles/posts/end-to-end-encryption-european-internet-forum/ https:

Skype[1] and Nokia before they were bought ? There are many more... [1] https://berthub.eu/articles/posts/end-to-end-encryption-european-internet-forum/ https://berthub.eu/articles/posts/end-to-end-encryption-euro...