Security Scanner Work
A security scanner looks for hidden weapons or explosives in a person’s body. Instead of the person’s actual image, the security scanner uses a generic human form called an avatar. This avatar is designed to protect the passenger’s privacy while still ensuring the effectiveness of security. It can be reminiscent of a gingerbread man or a paper doll.
Compared to X-rays, millimeter wave scanners use low-energy radio frequency waves to detect hidden objects. They are effective against small objects, such as beads of sweat, but they are still susceptible to errors. Germany tested millimeter wave scanners and found that nearly half of the people passing through them were falsely identified. Thankfully, France and Germany have since stopped using these machines in airports.
RF security gates are another example of how a security scanner works. These devices emit a low-frequency electric field in a shop, which is similar to radar. The hope is that the signals they receive will catch a stolen item on its way through. The devices work by triggering an alarm whenever someone tries to smuggle in an item. This way, they can help police stop criminals from robbing stores and other businesses.
Metal detectors are another type of security scanner. While these scanners may look scary, they are safe and can be used by airport security agents to identify dangerous items. These scanners detect both metal and non-metal threats. They can also detect jewelry, watches, coins, and IDs. This type of security scanner is much easier to use than an X-ray machine.
How Does a Security Scanner Work?
Vulnerability scanners use different tactics and techniques to find weaknesses in computer programs, networks, and communication equipment. The results of these scans are compared against a database of known vulnerabilities. Depending on the results, the security scanner may recommend countermeasures to prevent further attacks. They can even detect password breaches and suspicious applications or services.
X-ray security scanners use backscatter X-ray technology. These low-energy waves pass through objects and materials like clothing. However, these waves are scattered by dense objects and can reflect back into the scanners. The detectors can then create an image of the subject’s body. This image can reveal hidden items or explosives.
As web applications and systems become more connected to the world, the risks of data exploitation are increasing. Network vulnerability scanners are designed to identify weaknesses in network connections and web applications. They can also scan operating systems and other services that are accessible to the public. They work against a database of known vulnerabilities. Most vulnerability databases draw from the Common Vulnerabilities and Exposures (CVE) Program catalog. Each record contains a unique CVE identifier, a brief description, and at least one public reference.
Another kind of scanner is passive, which means it continuously monitors your network. It also recognizes new systems and applications added to your network. This helps you find and remediate vulnerabilities faster. These scanners also document the open-source frameworks and libraries you use in your applications, ensuring compliance with open-source license requirements. There are many commercial and open-source vulnerability scanners on the market today. It can be difficult to decide which one is the best for your needs.
