hm…. let me think where one has seen this before:


Zoom’s service is “not suited for secrets”

“The researchers also found that Zoom protects video and audio content using a home-grown encryption scheme, that there is a vulnerability in Zoom’s “waiting room” feature, and that Zoom appears to have at least 700 employees in China spread across three subsidiaries”

“Zoom’s Chief Product Officer Oded Gal later wrote a blog post in which he apologized on behalf of the company “for the confusion we have caused by incorrectly suggesting that Zoom meetings were capable of using end-to-end encryption.”


so whenever some company rolls “ITS OWN ENCRYPTION SYSTEM” it is basically meant to:

  • make it look secure
  • while implementing backdoor into encryption (master key) that enable certain parties to decrypt all the traffic

what are the alternatives?

according to this:

the only chat systems that one can use safely are:

audio conference software:

open source (once more) safes the day: throw away Skype:

  • Mumble the 100% Open Source server AND client:
    • Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming. (src)
    • “Mumble uses encryption for both control messages as well as voice data. Mumble’s control channel is encrypted using TLS-negotiable cipher suites and Mumble’s voice channel is encrypted using OCB-AES128. OCB is used to provide both secrecy and authentication while maintaining low latency. This encryption is mandatory and cannot be disabled.” (src)


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