I-COG is a gaming league and they use an external anti-cheat to make sure those playing in the league are not cheating.
In essence, you run an application on your desktop while playing that takes screenshots and scans your computer for hacks as well as writing a log that tells when you ran it. If it detects anything, you will be banned and disqualified from the league.
It takes screenshots correct? Yes
Does it scan computer for potential hacks? Yes
Does it scan the registery? Yes
Does it check internet history? Yes Thrue Cookies
Also takes a 5 sec video every once in a while.