Will the security lock keep the engine from starting, none of the doors, windows

First of all, it's H02S not H025. That's an oxygen sensor TC. H02S Circuit Low Variance Bank 2 Sensor 1 If the other two codes on it are for O2 sensors as well, that means all three are, and you're going to need a professional honest mechanic to get a little deeper into your car and figure out the underlying problem.