As far as i'm aware RNG are not completely random, but as close to it as makes no difference. I have heard of some faulty ones that allowed certain AP to rip holes in certain games, but these have been picked up on very quickly and replaced.
To think that an online casino is actually going to advertise (Yes Bodog advertise with Cipher and recommend using his system at their casino) for other players to use a system that is capable of actually beating their computer program is just ridiculous. It'd be the same as any other casino putting up a sign out front or running a TV advert saying "Come to the <insert casino name here> and use the Hi/Lo counting system, everyone welcome".
And i feel that the most important disclaimer on this one is that at no point - and i have read through all of Cipher's posts on this forum and had a good look through his own - despite being ask several times has Cipher shown ANY mathematical evidence that his system works.
All he offers is the screen shots of his winning sessions. No one here plays any system which only has anecdotal evidence as proof that it works. If you can't prove it mathematically - don't play it.
Even if Cipher is being genuine (tbh i think he's just another scam artist) and his system did work for him that doesn't mean it actually works. Arnold Snyder wrote a great piece that is very relevant to that topic that you can find at
http://www.bjrnet.com/member/voodoo_archive2/index.cgi?read=1004
RJT.