Summary:

• **What is AI Security?** AI security means protecting computer programs that use artificial intelligence from bad people who want to harm them. Just like you lock your door to keep your house safe, companies need to protect their AI systems from the moment they're created until they're being used every day.

• **Two Important Times to Protect AI:** There are two main moments when AI needs protection: when it's being built and trained (called "data time"), and when it's actually working and making decisions (called "runtime"). It's like protecting a toy both while it's being made in the factory and after you bring it home to play with it.

• **Working Together for Safety:** The best way to keep AI safe is to use many different protection methods at the same time, kind of like having locks, alarms, and cameras all protecting your house together. This way, if one protection method doesn't catch a problem, another one will be there to help.