NEW YORK (AP) — Many women say popular video games such as "World of Warcraft" and "Halo" are rife with harassment, stalking and sexism that game companies don't police effectively. Several experts credit Riot Games, the company behind popular online game "League of Legends," for building a system that aims to improve the culture of the game and change player behavior. Video game developers remain overwhelmingly male, and companies could make a conscious effort to diversify their workforces, Edwards says. In February, the company formed a "Trust & Safety Council" with outside groups to help develop tools and policies to fight abuse while still allowing people to speak freely. Last year, the free-wheeling online discussion board Reddit adopted new guidelines that prohibit publishing people's private information (such as stolen pictures or home addresses), harassment, abuse and comments that incite violence. The Electronic Frontier Foundation, a digital rights group, says that if companies aren't willing to build in filtering functions for harassing messages, they should let outside developers do so.