As a business owner, one of the things that should constantly be on your mind is the security of your office. A security system, exterior lights, and even patrols from a security service can all be beneficial, but you also need to make sure that your staff take a security-first approach. It's possible for a staff member to do something that inadvertently compromises the security of the office, so it's a good idea to enforce a handful of simple rules. Compliance with the following three rules can greatly reduce the likelihood of your office's security being compromised.

No Copying of Office Keys

An employee who is concerned about losing his or her key to the office may think about making a copy so that if the key is indeed lost, he or she won't have to ask for another key. The concern with this activity, however, is that you may end up with keys to your building that you don't know about, and unauthorized visitors can easily obtain the extra key without anyone realizing it. Owners typically have a log that shows how many keys have been made to the building, as well as who has them. Make sure that your employees know that they should not copy their office key on their own.

No Letting Strangers Inside

Depending on the nature of your business and the layout of your building, the exterior doors may be locked — perhaps with the exception of the front door that leads directly into a lobby or reception area. Your employees need to know that they shouldn't allow strangers into the building through any other access points. Someone who may wish to rob the business or commit another crime may linger near another door with the hope of being allowed in or following an employee in, so your staff should always be mindful of closing this door immediately.

No Posting About the Office on Social Media

Many criminals browse social media accounts for indicators of items that they can steal. For this reason, it's important to ask your staff not to talk about matters related to the office on social media, as an innocent comment may be seen by the wrong person. For example, someone might innocently write, "Brand-new 52-inch TV for the break room at work — awesome!" on his or her social media, but someone browsing the account may use this information to plan to break into the office and steal the valuable TV.