The remote car hacking attack by researchers Charlie Miller and Chris Valasek is the most discussed session at this week's Black Hat USA conference. While both researchers are security professionals, the research time and effort for their high-profile car hack was done largely as a hobby.

In a press conference at Black Hat, Miller said he still holds a full-time job at Twitter that has nothing to do with his car hacking efforts. While Valasek's job at IOactive now does directly intersect with vehicle security, the effort for the Chrysler hack was done outside of his regular meetings and responsibilities.

"Regarding the Internet of Things we were interested in cars because there is safety involved, which is really scary and interesting to us," Miller said

Watch the full video with Miller and Valasek below:

Sean Michael Kerner is a senior editor at eSecurityPlanet and InternetNews.com. Follow him on Twitter @TechJournalist.