CiCaDa

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Across
  1. 3. – To move in reverse; opposite of forward, often symbolizing regression or reversal in puzzles.
  2. 6. – A form of hidden communication, where messages are concealed in images, files, or media.
Down
  1. 1. – A numerical system often used in computing, short for hexadecimal.
  2. 2. – Simulated reality explored in a sci-fi cult classic starring Keanu Reeves.
  3. 4. – To go backward or undo an action; also a trope in time-travel fiction.
  4. 5. – To convert a hidden or encrypted message into readable form; common in cryptography.
  5. 7. – A shortened form of “algorithm”; used in programming and AI problem-solving.