All who uses Skype, it is obliged will agree with point that the company can read everything that there write (look Privacy policy in Skype). Company Heis, together with German colleagues, has found out by the elementary experiment that Microsoft actively uses this possibility, but very much oddly.

Practically right after message sendings in Skype in which the link on certain https a resource contained, the given resource has been visited with IP, belonging Microsoft HQ in Redmond, the USA. It has been noticed that after transfer to a body of the message of the link, the traffic unusual to it distinguished by the server as potential attack of repeated reproduction is generated. In too time IP the address from which "malefactor" tries to get access under the link, belongs Microsoft.