Cloudflare CTO John Graham-Cumming has successfully cracked and decrypted a 30-year-old ZIP file, and has written a blog post about how he did it. John Graham-Cumming's blog: Cracking an old ZIP file ...

Zip encryption is vulnerable to known-plaintext attacks. Implementation quality also is an issue; WinZip's is particularly bad. No source, I'm afraid.

Having access to your documents and pictures is really easy these days. About a million services, including Dropbox and iCloud, allow you to sync your stuff between devices, but there’s one little ...

That question can be interpreted two ways. Do you want to hack into someone else’s private files? Or do you want to avoid a form of encryption that won’t give you much protection? Since I believe that ...