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Why you might not want to use whatsapp anymore
(www.slashgear.com)
This is a most excellent place for technology news and articles.
Yes, I agree, for example credit card transaction processing or business communication with trade secrets in it. For most people doing things they want kept private but which is not illegal, basic encryption is great.
If I were going to plot the overthrow of a government, I'd try to as much as possible offline.