Gary McKinnon. Gary McKinnon was known by his Internet handle, âSolo.â Using that name, he coordinated what would become the largest military computer hack of all time. The allegations are that he, over a 13-month period from February 2001 to March 2002, illegally gained access to 97 computers belonging to the U.S. Armed Forces and NASA.
The atrioventricular valves of the heart are important in preventing backflow. The mitral valve prevents backflow into the left atrium, and the tricuspid valve prevents backfl â¦ ow into the right atrium.
The tricuspid valve allows blood to flow from the right atrium to the right ventricle, and prevents backflow. The two semilunar valves allow blood to flow from the ventricles, either into the pulmonary arteries from the right side, or into the aorta from the left side, and prevent backflow.