Which cybersecurity innovation has most significantly reduced ticket fraud at major sporting events in the past five years?

Modern sports venues are increasingly becoming targets for cybersecurity threats as they adopt more connected technologies. From digital ticketing and mobile concessions to fan engagement apps and stadium-wide WiFi, sports facilities now manage massive amounts of sensitive customer data. How well do you understand the cybersecurity measures protecting fans and athletes in today's high-tech sports venues?

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Blockchain-based digital ticketing systems with dynamic QR codes that refresh every 60 seconds
Facial recognition entry systems that match ticket purchaser identity with venue entry
RFID-embedded physical tickets with encrypted authentication protocols
AI monitoring systems that detect unusual purchasing patterns and block suspected scalping operations