I remember there being a product a few months ago that had some extraordinary cliams - I will try to find it.
The machine had to be pointed to their pool, and you accessed the miner status page via their website. The miner looked like a couple s5's taped together IIRC. In the end it was assumed this was a long CON, You would essentially be cloud mining. The machines you ran may not do anything more than turn on and connect to the pool.
So I really won't trust any gear that forces you to mine to their pool; or only provides access to the miner via their website.
3) Read all outgoing packets and ensure it's only sent to the selected pool. If there are packets sent to unknown places, the manufacturer could be receiving info on your pool/address and send some of their own hash to the same pool/address..
Sorry still lacking a lot of knowledge - What do you mean by this?? Where can this be found generally?