if I do try to jump start the starter like the video says and nothing happens is there any chance that it could be the security system locking the car down or no?
Short answer...NO.
The security can stop the engine from actually starting up by disabling the fuel supply. But if you connect the jumper wire as the video directs, with 12 volts at the relay as he demonstrates with the test light, the starter will crank the engine. If it doesn't crank the engine then either there is a bad connection, the starter is bad, or the battery is too weak to crank the engine.