Thermography is an imaging technique that uses infrared cameras to detect and visualize temperature variations on surfaces. In cybersecurity, thermography can be exploited to analyze heat patterns left on keyboards or devices after use. Attackers may use thermal images to deduce recently pressed keys or access codes, potentially compromising passwords or PINs. While thermography is more commonly used in industrial and medical fields, its application in cybersecurity highlights the need for awareness of physical side-channel attacks. Protective measures include waiting before leaving a device unattended and using materials that dissipate heat quickly.