I
have a number of customers who are consultants, therapists, etc. Due
to the virus outbreak, I did some looking into working over the
internet with other people to stay in business.
Some
of the accrediting bodies are quite rightly very cautious on customer
confidentiality. This can be compromised on a number of methods that
we all use. The issue is that other people
can intercept the audio and video streams going past.
To
prevent this, we need End to End Encryption (E2EE). Fortunately,
there are several excellent open-source (free) tools. Another
benefit to open-source is that the code is available to anyone to
review and comment, potentially making it better than proprietary
solutions who can build in secret monitoring.
Before
we get to them, Skype itself claims to offer e2e as an option: select
‘new private conversation’ from the new chat menu as long as you both
have versions of Skype that allow e2e, however commentators claim
that there are records of the call, but not of the content of the
call.
Skype’s
Private Conversations is based on Signal,
a rather good tool from Open Whisper Systems. Signal is even
supported and trusted by the famous or infamous Edward Snowden.
With
Signal, just install the software at each end (phone or PC), allow
certain permissions and off you go.