The FREE Cybersecurity Glossary by Thor Pedersen!

Cross-Site Request Forgery (XSRF): A cyber-attack that tricks a web browser into executing an unwanted action in a web application to which a user is logged in. It exploits the trust that a site has for the user's browser, potentially leading to actions like changing user settings, posting content without consent, or initiating transactions. Security measures against XSRF include anti-forgery tokens and same-origin policies.

Cross-Site Scripting (XSS): A type of security vulnerability that targets web applications, XSS enables attackers to inject malicious scripts into webpages viewed by other users. By exploiting the trust a user has for a particular site, these scripts can access any cookies, session tokens, or other sensitive information retained by the user's browser related to that site, potentially leading to unauthorized actions. XSS can be classified into different types (e.g., stored, reflected, and DOM-based) for a more comprehensive understanding.

Crosstalk: An electromagnetic interference phenomenon where a signal transmitted on one circuit or channel creates an unwanted effect on another circuit or channel. In telecommunications and networking, crosstalk can lead to degradation of signal quality, resulting in communication errors or loss of data. It is more prevalent in older or improperly shielded cables and is a significant consideration in the design of high-speed data communication systems. Measures such as using twisted pair cables or proper cable management practices are employed to minimize crosstalk.

Cryptanalysis: The study and practice of examining and breaking cryptographic systems, understanding how they work, and finding methods to defeat or weaken them. It involves analyzing the encrypted data (ciphertext) to discover the hidden structures and derive the original information (plaintext) without necessarily having access to the secret key used. Cryptanalysis is used both for academic research to test the strength of encryption algorithms and by adversaries to compromise security systems. It encompasses a variety of techniques, such as frequency analysis, pattern detection, brute force attacks, and more sophisticated mathematical approaches.

Crypto-equipment: Hardware or software designed specifically to perform cryptographic operations, such as encryption, decryption, digital signing, or key generation. Crypto-equipment safeguards sensitive information by transforming it into a secure form for transmission or storage, and it's commonly used in secure communication systems, data protection solutions, and other security applications. Examples include hardware security modules (HSMs), encrypted hard drives, and secure mobile phones.

Cryptographic Algorithm: A set of mathematical procedures or rules that are used in the processes of encryption and decryption. Algorithms like RSA, AES, and DES work by transforming data into an unreadable format, making it secure from unauthorized access and preserving data integrity and confidentiality during transmission or storage.