A flexible object is a material or structure that bends, twists, or moves instead of staying rigid. In cyber security, that usually means a physical component such as a cable, wire, ribbon connector, antenna, sensor lead, or flexible circuit. Flexibility is useful because it lets devices fit into tight spaces and survive motion, but it also creates attack surface: bendable parts can be routed around barriers, slipped through gaps, or manipulated without breaking the whole system.
Attackers may exploit flexible objects during hardware tampering, covert access, or device modification. For example, a thin cable can be hidden inside equipment, a flexible probe can reach a test point, or a bendable component can be repositioned to bypass a seal or trigger. Defenders look for unexpected bending, strain, or routing changes, and reduce risk with tamper-evident enclosures, strain relief, regular inspection, and controlled access to hardware. In practice, flexibility is a tradeoff: it improves usability, but it can also make physical compromise easier if the system is not monitored.