Acoustics is the branch of physics that studies sound, including its production, transmission, and effects. In cybersecurity, acoustics is relevant due to the potential for sound-based attacks, such as acoustic cryptanalysis, where sensitive data can be extracted by analyzing the sounds produced by electronic devices. Understanding acoustics helps organizations defend against such unconventional threats by identifying vulnerabilities in hardware or environments where sound leakage could occur. This field also covers soundproofing and noise control measures to protect against eavesdropping and data leakage through audio channels. As technology evolves, the intersection of acoustics and cybersecurity becomes increasingly important.