Joel Thomassino of Nashville tries to pick a lock to win a prize at the Coalfire Labs booth at Black Hat USA cybersecurity conference at Mandalay Bay in Las Vegas Wednesday, Aug. 8, 2018. K.M. Can …

Joel Thomassino of Nashville tries to pick a lock to win a prize at the Coalfire Labs booth at Black Hat USA cybersecurity conference at Mandalay Bay in Las Vegas Wednesday, Aug. 8, 2018. K.M. Cannon Las Vegas Review-Journal @KMCannonPhoto