Case archive

Choose your next
investigation.

Filter by track or difficulty. Every live case has a defined answer and stays inside a safe, explicit scope.

7 cases
CASE P-001Starter
Public Puzzle

Postcard From Nowhere

A quiet photograph, a station clock, and one place that fits every clue.

Internet Mystery 10 min50 pts
Review case
CASE P-002Starter
Public Puzzle

The Missing Frame

One image in a sequence has been removed. Reconstruct the pattern.

Logic 5 min40 pts
Review case
CASE P-003Easy
Public Puzzle

Archive Echo

A short message was filed backward. Restore the original.

Code & Ciphers 8 min75 pts
Review case
CASE C-101Easy
Professional CTF

Header Trust

A development endpoint trusts a claim the browser is free to change.

Web 15 min100 pts
Review case
CASE C-102Easy
Professional CTF

Shift Report

A routine field report was encoded with a very old substitution.

Cryptography 10 min100 pts
Review case
CASE C-103Medium
Professional CTF

Metadata Trail

The document is ordinary. Its properties are less careful.

Forensics 25 min200 pts
In development
CASE C-104Hard
Professional CTF

Cold Storage

A cloud snapshot contains one permission that should never have survived.

Cloud Security 45 min400 pts
In development