Archive Recovery Methodology - How ZIP Password Recovery Guidance Is Reviewed

Our evidence hierarchy

1. Format-owner documentation and published specifications.
2. Reproducible behavior from trusted archive utilities on test files.
3. Tool documentation for candidate verification and integrity checks.
4. Search-intent questions only as a guide to what users need explained, never as proof of a technical claim.

What we do not claim

We avoid fixed recovery percentages, universal GPU speeds, guaranteed turnaround, and promises that every password can be found. Throughput changes with the archive parameters, implementation, hardware, candidate plan, and verification work. A successful-looking string is not a result until protected data is opened and checked.

Primary references

• PKWARE APPNOTE - ZIP specification
• WinZip support - forgotten encryption passwords
• 7-Zip format overview
• RARLAB technical notes
• Hashcat example hashes and modes
• bkcrack project documentation

Update policy

When a format owner changes documentation or a tool changes its supported modes, we update the relevant guide and remove claims that can no longer be reproduced. If you find a technical error, send the URL and the source that corrects it through the contact page.