Mostly the accounts were blocked via mass abuse reports.
It is a well-known technique that’s been here for many years.
Vulnerabilities that allow an adversary block an arbitrary Skype account are present for a few years.
Prevention is as simple as it is low tech: don’t say or do anything on camera (or anywhere online) that you wouldn’t want your mother – or the world – to find out.
download (v.) is the act of copying data from a remote server to your computer or device.
I think it’s extremely unlikely that your Skype calls are recorded … I’ll dive into a number of reasons I believe that to be the case.
However, there’s another, potentially more dangerous, scenario that a lot of people overlook.
Another example is SCW-3328 which allowed to remotely turn on your muted microphone during a call.
Even at that time, I was worried by Skype’s approach to fixing bugs.
Thus data is copied “down” from those servers to your machine.
This post describes my fruitless effort to convince Microsoft employees that their service is vulnerable, and the humiliation one has to go through should one’s account be blocked by a hacker. This vulnerability allowed an adversary to crash a desktop version of Skype, and break the local history so that the user had to clear it for Skype to work.
In this regard, I point to what I believe boils down to many people’s over-inflated sense of self-importance (and even occasional paranoia). If that’s you, my advice is very simple: don’t use Skype.