Cheating is actually very difficult in online poker and it’s significantly safer than live poker.
There were some incidences of cheating in online poker in the early 2000s, but online poker sites have increased security immensely since that time and it’s very unlikely you’ll encounter straight-up cheating on a major online poker site. The practice of “botting” (using software to play near-perfect poker) has been more common over the five years, but recently sites have been cracking down on that practice in a huge way. It helps that No-Limit Hold’em (which is what is played at the World Series of Poker) with multiple players is extremely difficult to beat (even for advanced AIs). You’re betting off simply trying to hone your poker skills.