About Mule Security Mule Security Systems, Inc is a Connecticut based security services corporation specializing in security and fire alarm systems for both residences and commercial buildings. As a local, independent company, Mule Security is able to offer all of its clients affordable peace of mind that includes a friendly and helpful staff, attention to detail in your installation and monitoring, and the comfort in knowing that you are getting exceptional service from a company in your own neighborhood. Whether your security needs mean protecting your business investment or protecting your loved ones and a house full of memories, rest assured that you can count on Mule Security for all of your monitoring and security needs.