Bluejacking: The practice of sending unsolicited messages or files to Bluetooth-enabled devices. It is used in wireless communication to send short messages or files to nearby devices without the need for a direct connection. For example, Bluejacking can be used to send a promotional message to nearby phones with Bluetooth enabled.

Bluesnarfing: A type of unauthorized access to a wireless device through a Bluetooth connection, often between phones, desktops, or laptops. This attack allows access to stored information, like email messages, contact lists, or calendars, without alerting the device's user. Unlike Bluejacking, which primarily involves sending unsolicited messages, Bluesnarfing is a serious security concern as it allows for theft of information and unauthorized access to personal data.

Blue team: A team of security professionals who focus on defensive measures to protect an organization's information systems. It is used in cybersecurity to defend against cyber-attacks and prevent data breaches. Examples include regular security audits, implementing security protocols, and monitoring network traffic.

Bluetooth: A wireless technology standard used for exchanging data between fixed and mobile devices over short distances. It utilizes short-wavelength UHF radio waves and is primarily designed for low power consumption. Bluetooth has become a common feature in many types of hardware, from computers and smartphones to audio equipment and car audio systems. Like any wireless technology, it has potential vulnerabilities and can be exploited if not properly secured, such as in the case of Bluejacking or Bluesnarfing.

Boot Sector: A region of a storage device containing machine code to be loaded into RAM by a computer system's built-in firmware during the boot-up process. It typically includes a small program that tells the computer how to load the operating system and start the initial processes. The boot sector is a critical component in system startup and is often targeted by malware to control the boot process.

Boot Sector Virus: A type of malware that infects the boot sector of storage devices (like hard drives or removable media). Once installed, it is loaded into memory every time the system starts up, enabling it to persist even after a system reboot. It can potentially take control of the system before the operating system is fully loaded, making it particularly dangerous and difficult to detect and remove with standard antivirus tools.