Dear fellows, how can I attach to pidgin a system Cerber 'eating up' everything that is executable, unzippable, unpackagable or requesting to be opened by an application of the system, sent on encrypted line connection. How can I protect the Pidgin itself against such 'chat communication'. Please, advise.

Can't tell...don't understand your question. Can you please write it more clearly?

Don't know what a "system cerber" is, what you mean by "eating up everything", or why you want to protect a chat application against "chat communication"....

Well, forget about the 'Cerber'. I had the following happened to my computer - Pidgin has been activated and all of a sudden there was some computer code rolling on in pidgin and Pidgin crashed (without requesting a bug report). I restarted the computer, uninstalled pidgin from the package installer and installed it again, and the system is OK. I would like to know whether Pidgin crashed as a self-protection to save the system, or it has been crashed distantly as a protection measure, or it has been crashed by a malicious attack of third parties?

Well, since you haven't posted any of the "computer code", or given any error messages/log entries, or any other means of diagnosing something, it's hard to say.

As far as I can understand your are asking whether it was any php, perl, python script or something else. Well it was not python definitely. In my view it was php or something very much resembling php script. I can not say it for sure. Sorry.

No, I'm asking for ANY errors/codes/whatever you saw. Your question is vague and hard to understand, so it's impossible to diagnose, or help you with.