Zac Franken, who asked that his face not be shown in photographs, demonstrates his Wiegand-protocol hacking tool, which permits him to, essentially, change the functions of this mockup contactless access control system...a type such as you might find in an office building.

Zac Franken, who asked that his face not be shown in photographs, demonstrates his Wiegand-protocol hacking tool, which permits him to, essentially, change the functions of this mockup contactless access control system...a type such as you might find in an office building.