Like, come on. How it's can be back-doored if it can work just fine in offline VM?
Also there are only small percent of specialists who even know this tool exist let alone have know-how to use it. And since it heavily used for mailware reverse engineering it's gonna be laughtable to put any "secret backdoors and exploits" in it.
Might be worth it as hacker contest for finding good hiring candidates, but certainly not at spying attempt. No sane person who able to use this software gonna run it on PC containing some important secrets.
Also there are only small percent of specialists who even know this tool exist let alone have know-how to use it. And since it heavily used for mailware reverse engineering it's gonna be laughtable to put any "secret backdoors and exploits" in it.
Might be worth it as hacker contest for finding good hiring candidates, but certainly not at spying attempt. No sane person who able to use this software gonna run it on PC containing some important secrets.