The duties of a security guard focus on providing protection and ensuring the security of a building or facility and the people or items inside. In this career, you can also protect individuals or groups of people. If you are an entry-level security guard, your responsibilities include undergoing on-the-job training with a more experienced security officer. You patrol the grounds or buildings for which you are responsible, or you monitor the area using security cameras. As a security guard, you respond to incidents and security breaches and work with law enforcement when necessary. Security guard employment options include both armed and unarmed positions.