Your next hotel room stay may not be as secure as you hope it is. A group of security researchers who were invited to a Las Vegas hotel to identify digital security ...

Technology that allows hotel guests to use their phones as room keys is expanding, taking aim at those environmentally unfriendly plastic cards. By Karen Schwartz The demonstration using the cellphone ...

Marc Weber Tobias and two colleagues discovered that they could create plastic keys to open Medeco's M3 high-security locks, despite key control measures designed to thwart key duplication. Photo: ...

Bad news: With less than $50 of off-the-shelf hardware and a little bit of programming, it's possible for a hacker to gain instant, untraceable access to millions of key card-protected hotel rooms.

SAN FRANCISCO — Every once in a while, an email or Facebook posting makes the rounds sounding alarms over the supposed danger of used hotel card keys. To stay safe, the reasoning goes, travelers must ...