The Steranko Security System is the toughest security system in the world, so much so in fact that the Pentagon has called it “Overkill.”
If the designer took one of those computers that can beat like 100 people at chess, give it a brain the size of a building, hook it up to military grade infra-red, ultra-sound, and motion sensors, and then give it the personality of a pissed off Rottweiler then you have the Steranko. It has an heuristic algorithm which allows it to adapt to your moves and evolves a strategy based on your response. It learns and it hunts.
It has four levels of response. Level one is passive lock down, two is fire, three is terrorist takeover, and four is hazmat containment breach. If it stays at level one then all an intruder needs to do is stay away from doors, cameras, security key cards, and even actual guards. The intruder is safe so long as they stay in, but as soon as they try to get out then game over. Eliot likened it to a lobster trap in that it’s easy to get in, but there is no way out.
Nate Ford noted that it was weak against certain entry types (from the top, specifically).
Alec Hardison managed to barely hold one off in The Inside Job. Unfortunately, the one which appeared The Long Goodbye Job was programmed to learn from the only time it had been "defeated", making it a greater challenge the second time around.
Ultimately, the Steranko system makes its final appearance as a plot device in The Long Goodbye Job.
Steranko Security System is named after Jim Steranko, innovative comic book artist and escape artist/illusionist