Skype finally getting end-to-end encryption

Found on Ars Technica on Thursday, 11 January 2018
Browse Software

The newest Skype preview now supports the Signal protocol: the end-to-end encrypted protocol already used by WhatsApp, Facebook Messenger, Google Allo, and, of course, Signal. Skype Private Conversations will support text, audio calls, and file transfers, with end-to-end encryption that Microsoft, Signal, and, it's believed, law enforcement agencies cannot eavesdrop on.

While that is basically a step into the right direction, the use of Signal is questionable. Yes, it is (A)GPL licensed, but Moxie Marlinspike does not allow 3rd parties to join their network, thus blocking development of alternative clients and servers. Furthermore, you have to tie your account to your phone number, what should never be a requirement for anybody who wants privacy. So you just move from one walled garden into another.