Here is a report-style breakdown of what it is, why people want it, the technical reality, and the risks.
For those unfamiliar, is a third-party save editor designed for PlayStation 4 and PlayStation 5 games (though PS5 titles require a PS4 version save transfer trick). It runs on a Windows PC and works by modifying encrypted save data from your console. gran turismo 7 save wizard
Resigning a complete save file is primarily used by players to quickly unlock specific trophies, such as those for total distance driven (e.g., the "pointless online shared km/mile trophies"). Key Limitations Supported? Explanation Direct Credit Editing Server-side validation prevents credit hacking. Unlock All Cars Here is a report-style breakdown of what it