An airless tire is a tire design that does not depend on compressed air for support. Instead of an inflated inner chamber, it uses a load-bearing structure such as a polymer mesh or lattice to carry weight, absorb shock, and provide flexibility. This makes the tire less vulnerable to punctures and pressure loss, but it also shifts the engineering challenge to the material and geometry of the structure itself.
In cyber security, airless tires matter because modern versions are often created through digital manufacturing. If an attacker changes the CAD file, slicer settings, material profile, or printer firmware, the finished part can be weakened without leaving obvious visual signs. Defenders protect against that risk with file integrity checks, access control, signed design data, version control, and physical testing. The lesson is simple: when a mechanical part is defined by software, protecting the digital workflow becomes part of protecting the object itself.