If you do not need the existing program and just want to reuse the hardware, you can perform a factory reset. This clears all existing passwords but also . PLC and HMI Password Cracking Tools Deliver Malware
If you're a system administrator or an owner of a Delta HMI system, consider implementing robust security practices such as: how to crack delta hmi password
If you have the original HMI project file ( .dps , .dpa , or .dpb ), you don't need to "crack" the physical HMI unit. You can view or change the security settings directly in the software: Open the project in . Navigate to Options → Configuration . Go to the Security Level and Password tab. If you do not need the existing program