Learn about Bluetooth technology

Today, many devices are tightly coupled with Bluetooth technology to enable wireless communication with other Bluetooth devices. Before using Bluetooth, we should find out what this technology is and the security risks that may occur with it, as well as measures to avoid or protect you from these risks.

What is Bluetooth?

Bluetooth is a technology that allows communication between devices without cables and wires. It is an electronic standard, which means that manufacturers want to have this feature in the product, they must comply with the requirements of this standard for their products. These specifications ensure that devices can recognize and interact with each other when using Bluetooth technology.

Today most factories produce devices that use Bluetooth technology. These devices include mobile phones, computers and personal assistants (Personal Digital Assistant - PDA). Bluetooth technology is a technology based on radio frequency and any device with built-in technology can communicate with other devices with a certain distance of distance to ensure capacity for transmitting and receiving waves. This technology is often used to communicate between two different types of devices. For example: You can operate on a computer with a wireless keyboard, use a wireless headset to talk on your mobile phone or add an appointment to a friend's PDA schedule from your PDA.

So what is the security issue related to this technology?

Depends on how it is configured. Bluetooth technology can be quite safe. You can see many advantages of using key validation and encryption. However, many Bluetooth devices have short numbers of digits used in PIN codes and this can be dangerous for these devices.

If someone can 'discover' your Bluetooth device, he or she will be able to send unsolicited messages to and abuse your Bluetooth service, which can cause problems. trouble. What's worse is that a stranger can find a way to infiltrate or modify your data. An example of this type of attack: an attacker can use a Bluetooth connection to steal important information from your device. Viruses or other dangerous codes can also take advantage of this technology to harm devices. If it has been compromised, your data may be modified, compromised or stolen or lost. You should be aware of who you send information to on an unreliable Bluetooth connection.

So how to protect?

• Disable Bluetooth when not using them - Unless you enable the transmission of information from one device to another, you should disable this technology to avoid possible invalid ones. Intrusion.

• Use Bluetooth in hidden mode - When activating Bluetooth, place it in the 'undetectable' page. Stealth mode to prevent other Bluetooth devices from recognizing your device. This does not prevent you from connecting to other Bluetooth devices. Even the two devices can recognize each other to connect if they are in hidden mode. Devices like mobile phones and wireless headsets need to be placed in the 'undetectable' mode of the initial connection, they always recognize the other device without searching again for the next connection.

• Be careful where you use Bluetooth - You need to be concerned about the environment when pairing your device or operating in discoverable mode. Get a specific example: If you are in a public place 'hot spot', there is definitely a lot of risk in case someone blocks your connection than you connect it in your home or car bowl.

• Evaluate your security settings - Most devices have many features to help you equip yourself. However, activating certain features can give you a lot of risk of being attacked. Therefore, disable any unnecessary features or connections. Check the settings, set up special security, and select the options you need without causing a high risk to you. Make sure all your Bluetooth connections are configured with security requirements.

• Fully exploit security options - Learn carefully about the security options that your Bluetooth device can provide, thereby fully exploiting their functional features such as encryption and authentication. determined.