"We have done it with individual broadcasters. We've done it with our host broadcast services", said Federico.
Powar said with Russian authorities also keeping home-grown hooligans away from games, the World Cup had an global crowd "very different to the fans that come to domestic football".
Monitors identified sexist incidents, including fans harassing female broadcasters, as having been a bigger problem so far than acts of racism.
Addiechi added that it was not a "proactive campaign" but said "we'll take action against things that are wrong".
England football fans chanting "no surrender" during the singing of the national anthem ahead of their team's World Cup semi-final is being investigated by FIFA. Instead, soccer's treatment of female media workers and fans led to heated debate.
According to Fare Network executive director Piara Powar, the real number of these cases could be even higher than what they have managed to document.
This isn't the first time the obsessive focus on scantily clad female fans has been called out.
With World Cup costs for travel and tickets - $105 for the cheapest seats at group games for visitors - always rising, the different audience for games helps explain changing patterns of behavior. The only scantily clad bodies on show are covered in colourful body paint.
FIFA's warning to broadcasters comes ahead of the World Cup final between France and Croatia.
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