Cybercriminals use popular sports events as bait for their attacks. The number of attacks has been low compared with the 2014 World Cup. The International Olympic Committee (IOC) keeps a very active Security Operations Center. The most common attacks are those that aim to phish the final user stealing credentials is a very easy attack that even a non-skilled criminal can do. Bad guys are constantly registering new creations at the start of every attack, our denylist contains more than 230 of these bad domains.”]
Source: https://securelist.com/it-threats-during-the-2016-olympic-games-in-brazil/75045/