Steven Levy / Wired: How Cloudflare CTO John Graham-Cumming cracked an encrypted ZIP file containing the code for a system that helped ANC members communicate safely under apartheid — John Graham-Cumming, who happens to be Cloudflare’s CTO, cracked a 30-year-old encrypted file that had a role in rewriting South Africa’s history.
Or you could follow to the (original) blog: https://blog.jgc.org/2024/09/cracking-old-zip-file-to-help-open.html