When headers go bad, systems must fail fast. Header Tamper zeroes in on manifests, cross-reference tables, CRCs, and atom metadata so you can practice those critical failure paths under controlled conditions.

Need to practice ransomware recovery without detonating malware? Entropy Surge is your mode. It blasts targeted regions with high-entropy bytes so signature-based detection, backup validation, and forensic training all get realistic input.

When you want maximum variability, choose Random Byte Mutation. It sprinkles mutations across the entire file, from metadata to payload, revealing assumptions you did not know existed.