Infosec glossary entry
Cipher Block Chaining (CBC) is a mode of operation for block ciphers that enhances the security of encryption by combining the output of previous blocks with the current block of plaintext. In CBC mode, each block of plaintext is XORed with the previous ciphertext block before encryption, making it more resistant to certain types of attacks. This chaining effect ensures that identical plaintext blocks produce different ciphertext blocks, improving the overall security of the encryption process.
In Cipher Block Chaining (CBC) mode, an initialization vector (IV) is added to the first block of plaintext before encryption and the resultant ciphertext is added to the next block of plaintext before encryption, and so on. Decryption is the reverse process. https://www.cryptosys.net/manapi/api_blockciphermodes.html
By jean-christoph
March 28, 2022
— And why your SOC might actually need a Bard 🐉⚔️ Cybersecurity teams are often compared to armies, fire brigades, or special forces. Personally? I think they’re much closer to a party of heroes in a classic fantasy role-playing game. No matter how many frameworks, SIEMs, or AI tools we summon, defending a digital kingdom
Read MoreIntroduction Sun Tzu’s "The Art of War" is a legendary strategic treatise written more than 2,500 years ago. Its enduring principles of warfare strategy have transcended military boundaries, influencing disciplines from business management to competitive sports. In today’s digital age, its relevance is increasingly apparent in the cybersecurity landscape, particularly for CISOs of medium-sized enterprises,
Read MoreWhy We Keep Losing Despite Stronger Security Controls Over the past three years, businesses have almost doubled their confidence in cybersecurity—rising from 32% in 2021 to 54% in 2024 (The Global Cost of Ransomware Study, 2025). Despite this, ransomware’s impact has only grown: 40% of affected companies suffered significant revenue losses, 58% experienced operational downtime,
Read More