CASE 004
Beginner
Telemetry Fragment
A reversible encoding is hiding a six-letter signal.
Technique family
Encoding
Reversible representations such as Base64 combined with hidden-message discovery.
How this family works
Encoding changes how data is represented. These challenges test recognition, decoding, and multi-stage extraction without treating encoding as encryption.
Challenges
CASE 009
Advanced
Double Wrapped
Finding the clue is only stage one; representation is stage two.