Detailed explanation of the criminal method

　　According to police, a man suddenly discovered that an intruder tried to disrupt the signal of his security camera while in his basement. At the same time, the mobile phone signal was also interfered and could not dial 911 smoothly. The thief quickly fled after realizing that someone was in the house. Afterwards, the police issued a warning on social media, saying that the suspect was very likely to use a Wifi jammer to block the victim's ability to call the police.

　　Robert Siciliano, CEO of Protect Now LLC, said: "These devices are similar to cell phone jammers. By disrupting the signal, it makes it difficult for security systems and mobile phones to work properly." He pointed out that Wi-Fi signal jammers not only affect home monitoring systems, but may also block the alarm function of home security systems, making it difficult for owners to get help in the event of a theft.

Police investigation progress and public warnings

　　At present, the suspects in the case have not been arrested, but the police speculate that such crimes may be related to the "South American Theft Group", which has formed a strict organizational structure and skilled methods of committing crimes in burglary. The New Jersey police said that such cases are increasing, and the criminal gangs use high-tech equipment to avoid monitoring and block alarm signals. This trend is worrying.

　　Robert Siciliano pointed out that Wi-Fi jammers are very easy to obtain on the Internet. Although such devices are illegal in most states, criminals can easily purchase them. Such devices can be called "invisible killers" in home security, and because of their secrecy, residents often do not realize it until the real risk occurs.

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