Byte Flip mutates targeted byte ranges while respecting overall file length. It is ideal when you want the file to open - but misbehave - surfacing nuanced defects like off-by-one errors, glitchy renders, or schema drift.

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.