These tools modify safety- and security-critical control units (airbag, immobilizer, ECU, emissions). In many countries, disabling an immobilizer, clearing DTCs, removing EGR/DPF, or resetting airbag crash data for road use is restricted or illegal, and airbag work directly affects occupant safety. Only use them on vehicles you own or are authorized to work on, only after the underlying fault has been repaired, and check the laws and regulations in your country first. Always verify every file on the bench before writing it to a vehicle. You are responsible for how you use these files.