Security at these events often focuses on physical security, with increased local police, physical barriers and identification checks. The World Cup would provide an ideal opportunity for cyber actors seeking to garner enhanced attention. Fans traveling internationally to attend high-profile sporting events are more likely to receive phishing attack messages. Nonsecure Wi-Fi can enable others to see any sensitive information sent over the network, including usernames and passwords, financial information and private documents. For fans traveling to global sporting events, we recommend the following measures.”]
Source: https://securityintelligence.com/cybersecurity-at-the-world-cup-what-you-should-know/