skype hacked. How did it happen?

Question

Skype

Yesterday, someone on my behalf asked my friend to send money to Yandex. They wrote only to him, and the attacker entered into a very non-trivial dialogue with him.
I use skype only from my phone and quite rarely. Bruteforce is unrealistic. Of the options, I see only a cross-check and malware on the phone (which I really worry about). In general, I'm quite paranoid about the applications that I install, but everything is possible.
What to do? I want to know if the phone has been hacked.
PS: I wrote to Yandex.

Answer 1

Like in 2003. I lived with a girl. We were both gamers. Well, of course, then I started my programming path.
I had a site on a regular hosting. At that time, the code was highly protected. One fine day, I saw unusual behavior in the logs. Went through the code, found a spambot.
Of course, I cleaned everything, etc.
But I became interested, like you, who and how hacked me. With my modest powers, I could not determine.
As a result, I created a file forHacker.txt in the root of the site.
In it I asked the question - how did you actually hack me?
the next day a person knocks on ICQ, I ask
- What do you need? - in response
- Comrade Ivan, you yourself asked me to tell you how I hacked you
- Thank you for responding, enlighten plz
- Your girlfriend Sveta was not neat, she downloaded my file. In this connection, I was able to access her computer. Further on the local network found access to yours. I planted a keylogger and just waited for the password to be entered.
....
All the best to you and good luck. I leave your site alone =)
This is our approximate conversation.
So there are many ways to get your data)

Answer 2

My Skype was hacked the only time in my life, just when I installed a Skype glue from Google Market. So I would dig in that direction. (By the way, perhaps the jamb is not in Skype itself - theoretically, any application that works with accounts could steal the password, and you don’t need to steal, the main thing is to be able to log in).