Strengthening the physical barriers of the home is important. This means having strong doors and windows, preferably with good locks. Deadbolts on doors and window locks can make it more difficult for invaders to enter. Also, keeping the outside of the home well - lit at night can discourage burglars as they don't like to be in well - lit areas where they can be easily seen.
Another aspect is being vigilant. Knowing your neighbors and having a neighborhood watch program can be very helpful. Neighbors can keep an eye on each other's homes and report any strange activities. Also, not advertising your valuables or your absence from home, for example, not posting on social media that you're going on a long vacation while your house will be empty.
One way is to have a good security system. This can include alarms, cameras, and motion sensors. These can deter potential invaders and also alert the authorities or the homeowner if there is any suspicious activity.