Frequency: The number of occurrences of a repeating event per unit of time. It is most often associated with waves, like radio waves, and determines the data transmission rate. High-frequency waves can transmit more data but may also be more susceptible to interception or interference, leading to potential data loss or unauthorized access.

Frequency Analysis: A method used in cryptanalysis to study the frequency of letters or groups of letters in a ciphertext. The technique is based on the fact that, in any given stretch of written language, certain letters and combinations of letters occur with varying frequencies. If an unauthorized entity conducts frequency analysis successfully, it can potentially decrypt and access sensitive information without authorization.

Frequency Hopping: A method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. This technique minimizes the risk of interference and interception, as it appears as short bursts of noise on any one channel. It is widely used in technologies like Bluetooth and some secure communication channels. Frequency hopping is effective against signal jamming and eavesdropping and improves the sharing of the radio spectrum among multiple users.

FTC (Federal Trade Commission): An independent agency of the United States government that enforces federal consumer protection laws. It is used to prevent deceptive or fraudulent business practices and protect consumers. For example, the FTC has brought lawsuits against companies for false advertising or unfair business practices.

Full Backup: The process of copying every file and piece of data from a particular system or storage device. This backup type creates a comprehensive replica of all directories, files, and databases, ensuring that all information can be restored from this single backup if necessary. While full backups can be more resource-intensive than other types (like incremental or differential backups), they provide a complete snapshot of data at a particular point in time and are essential for disaster recovery and business continuity purposes. Full backups are often scheduled regularly to ensure data is consistently protected.

Full Disclosure: The practice of publicly revealing all known vulnerabilities of a system or software to ensure awareness among stakeholders, including vendors and users. This approach, often taken by security researchers and ethical hackers, aims to pressure software producers to address vulnerabilities promptly while enabling users to assess risk and apply necessary precautions.