What Are Covert Channels in Cybersecurity & How Are They Exploited?

In the ever-evolving landscape of cyber threats, some techniques remain hidden beneath the surface—literally. Covert channels are one such method used by cybercriminals to sneak sensitive data past security controls undetected. These stealthy communication methods pose a serious threat to enterprise systems, government networks, and critical infrastructure. For aspiring ethical hackers, understanding covert channels is essential, especially if you’re enrolled in a Ethical Hacking Certification Course in Kolkata , where real-world attack simulations often include advanced topics like this. In this blog post, we’ll break down what covert channels are, how they are created, how attackers exploit them, and how defenders can detect and prevent them. What is a Covert Channel in Cybersecurity? A covert channel is an unauthorized communication path that allows the transfer of information in a way that violates a system's security policy. Unlike overt channels (such as email or file sh...