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A good home alarm system is one of the best tools you have to keep unwanted intruders away from your home. However, tragedies often occur when these intruders masquerade as friendly and helpful individuals, and only reveal their true nature when they are actually in your home. While the home security system can still help at this point, the proverb says, "An ounce of protection is worth a pound."

The concept of the so-called "Trojan horse" comes from the history of ancient Greece. The Trojans and the Greeks were at war, and the city of Troy (home to the Trojans) had long city walls that the Greeks could not break through. Ultimately, the Greeks left a large wooden horse at the gates of the city of Troy, which he believed the Trojans were leaving Troy, and brought it to Troy as evidence of the abdication of the Greeks. However, when the Trojans left the horse behind the walls of their city, they discovered that the horse actually contained Greek soldiers who sacked and then invaded the city of Troy.

The terms "Trojan horse" persist to this day in the world of computer security. In terms of computers, a "Trojan horse" is a malicious program that can reach the target computers by hiding itself as a useful thing, or at least not threatening it, then attacking a computer to disable it or steal valuable information. It is useful not to underestimate a person's ability to deceive and deceive.

Trojans can come to your home in the offline world in a variety of formats. Think about all the people that you might enter into your home every day. Benefit workers come to mind immediately. Do you know when the representatives of the gas and electricity companies will come next time to verify your use? Most people also cannot accompany accompaniment representatives without notice. For example, a major water source in your area might be broken, or a nearby electrical transformer could stop, without affecting your home. Work on your property may be required in those cases. However, utility companies realize that criminals sometimes enter people's homes on the pretext of doing some necessary work, and they often issue their employees' credentials to prove they need to enter your home for a legitimate purpose.

Human "Trojans" can take on the appearance of anything you can imagine. Criminals have impersonated policemen and fire investigators, often with badges that look completely realistic. Postal courier sellers are also considered a disguise of criminals. However, criminals sometimes do not disturb disguises, as alleged robberies can prove "home invasion". Home alarm systems with a "panic button" or other tool that you can manually activate after your home security has already been compromised can help in these horrific situations.

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