There are allegation that Microsoft changed Skype architecture (after buying Skype for $8.5 billion) to make wiretapping easier.
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In July last year, nine months after Microsoft bought Skype, the NSA boasted that a new capability had tripled the amount of Skype video calls being collected through Prism;
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https://en.wikipedia.org/wiki/PRISM
There are allegation that Microsoft changed Skype architecture (after buying Skype for $8.5 billion) to make wiretapping easier.
" In July last year, nine months after Microsoft bought Skype, the NSA boasted that a new capability had tripled the amount of Skype video calls being collected through Prism; "
https://www.theguardian.com/world/2013/jul/11/microsoft-nsa-...