Beyond AES: Why CBC Mode Remains Critical to Encryption Security

While developers often cite AES as their encryption solution, they frequently overlook the encryption mode itself—CBC in particular—which prevents pattern attacks and requires careful implementation to avoid vulnerabilities. Understanding CBC is essential for both building secure systems and recognizing attacks like padding oracle and bit-flipping exploits that stem directly from how CBC operates. This knowledge gap represents a critical blindspot in the development community's security practices.