Careful maintenance of your security system is critical, and so are the security system upgrades that can keep you several steps ahead of potential trespassers. With today's vastly expanding technology, your security system can quickly become out of date. Stay on top of new security system services and features offered by your security provider. Upgrades to security systems are usually easily added, and are sometimes even free of charge. It is also important to have your security system checked and tested regularly.