Do you think online slots are rigged?

So, who is convinced that online casino slots are rigged? We all know that slots have negative expected value, so that the player cannot win in long run, but that's not what I'm asking. Do you think that besides that negative expected value slotmakers rig their slots so they can increase their profits even more?

 

In my opinion, slots are not rigged (99% sure). You don't even have to rig anything here to make nice profits, since all of the games are negative expected value already. But that's not all, I think that the industry is so big these days and there are so much companies and personnel involved in making all this gambling software, that if slots machines were rigged regularly, than most certainly over the time some of this information would bet leaked to the public. So, considering how much people involved in making of slos, it makes incredibly difficult to keep all the information secret and sooner or later, surely, some of it would leak. But so far, we have no proof of that, nobody came out publicly and declared that slots are rigged.