Could there be somebody who has a superuser account or something like that? Yes. (Doesn't mean that there is. It's just possible)
Do I think they would be playing anything but big money? No
If I had a software that allowed me to cheat would I tell some random person about it? Not a chance in hell. It would be my precious.
Do bad hands beat better starting hands? Of course they do. It happens all the time. I have seen someone be behind in a hand preflop and catch up at least 4 times in a row and bust out the big stack. I think it was MyriamAndMax who went from last in chips to first in chips in minutes. Busting out the largest stack in the tournament while doing it.
Do crazy things happen in poker. Of course they do. If there wasn't luck then either Phil Hellmuth or PanlickTrollbait would be the greatest tournament players ever.
Are people going to keep on whining about rigged software instead? Of course they will. That will never end.
Does this stuff happen in live play? Of course it does.
Do people whine and cry about it in live play? Of course they do. I have seen people start accusing the dealers for all their bad luck. Almost getting violent about it.
Is there anything that you can do? Yes work on improving the one thing that you can control. Your own game.
Will you?