CNBC’s Frank Holland sits down with Walmart’s chief information security officer Jerry Geisler at Walmart headquarters in Arkansas to discuss the growing need for cybersecurity during the company’s Global Media Tech event. As the retail giant moves into new lines of business including an online marketplace with more than 100,000 third party sellers and creating an in house Buy Now Pay Later product, Geisler says cybersecurity is crucial to Walmart’s ambitions. They also discuss how Walmart is working to mitigate the shortage of 700,000 cybersecurity professionals in the U.S.