This week, the U.S. Attorney’s Office for the Northern District of Texas announced that the FBI has arrested Jesse William McGraw, a 25 year old contract security guard at the W. B. Carrell Memorial Clinic, a hospital in Dallas, Texas, for hacking the hospital’s computers and air conditioning system. For many businesses, an attack on ventilation systems might be an inconvenience, but the threat could be much more serious for critical care patients in healthcare institutions like the Carrell Clinic. McGraw is charged with violations of the Computer Fraud and Abuse Act (CFAA), 18 U.S.C. sec. 1030.