National Instruments (NI) LabVIEW allows developers to lock the block diagram of a VI. This protection serves two primary purposes: protecting intellectual property (IP) and preventing users from accidentally modifying core code. When you password-protect a VI:
Developers have created utilities like LabVIEW-VI-Hacker on GitHub, which uses brute-force algorithms to recalculate MD5 salt and replace password hashes.
Disadvantages: Requires technical knowledge of Python and scripting. Essential Safety Precautions
Uploading sensitive, proprietary code to third-party online tools can compromise company data.
While online tools are the most straightforward, there are several alternative methods, each with its own set of advantages and disadvantages.