A composite material is formed by combining two or more distinct substances to create a new material with enhanced properties, such as increased strength, durability, or resistance to environmental factors. Each component retains its individual characteristics, but together they produce a material superior to the individual elements. Common examples include fiberglass (glass fibers in a resin matrix) and carbon fiber composites. In cybersecurity, the term may be used metaphorically to describe layered security measures or blended defense strategies, though its primary meaning is in material science and engineering.