Over the past decade electronic security technology has evolved from an exotic possibility into an essential safety consideration. Before resorting to high-tech security solutions, school officials should think carefully about the potential for unintended consequences. Technological fixes may be mismatched to the problems being addressed. They can be expensive. Any network will require continual maintenance, eventual upgrading, and constantly updated virus protection and intrusion detection systems (IDS) to watch for hackers or unauthorized transfers of data. A full-blown information technology (IT) department will usually be essential. An over-reliance on electronic technology can backfire with power outages and technological failures. Some security technologies raise political and philosophical concerns. Still, technology, used correctly, can be highly functional and cost effective. Its pros and cons must be weighed carefully within the context of local sensibilities and conditions. This paper describes several security technologies and offers tips for using them correctly.