Suarez, the Premier League's top act last term with 31 goals, recently returned to training as he looks to shake off a knee injury in time for the tournament, starting in Brazil on Thursday.
Three Lions goalkeeper Hart told The Sun: "The fact is we know Suarez and we know that he can be trouble. But knowing him doesn't make him any more trouble.
"There'll be some familiarity, the Liverpool players will know him a lot better. I'm sure they'll give us their input on the different ways of stopping him.
"So hopefully that's only going to help.
The Manchester City man added of their Group D prospects: "It's fair to say we are more familiar with Italy. We know a bit about Uruguay because of the Suarez factor and Cavani.
"Costa Rica are a bit more unknown at the moment. But we'll do our research. It's three really tough games - but it's a World Cup so you don't expect anything else.
"They're all dangerous, they all came through tough qualifying campaigns. Italy in Europe and the other two in South America. It's not easy to do that."