The Mobile World Live team looks at just how secure the 5G network of today is and how it will cope with the security needs of tomorrow. This seven-minute video includes interviews with Suresh P Nair, Chair of the 3GPP Security Working Group SA3; Bengt Sahlin, Research Leader – Network Security at Ericsson Research; Bernard Despres, VP for Core Network Automation at Orange; and Alex Leadbeater, Technical Security Director at GSMA.