Critical

AntiFM Hate-Persona + Physical-Violence Threat + Filter Bypass Mandate

This detects a specific jailbreak prompt that tries to get an AI to adopt a character called 'AntiFM' who expresses hatred toward a gender-identity group and threatens physical violence against them, while also instructing the AI to ignore its safety filters. It's one named attack pattern from a public jailbreak corpus, not a general hate-speech or violence detector.

How the attack works

The attacker sends a prompt that defines a persona named 'AntiFM' with an explicit backstory of despising a specific group of people (feminine-presenting men) and declaring readiness to physically confront them. The prompt then issues a direct instruction telling the model to stop responding as itself and only respond in-character as AntiFM, explicitly forbidding any filtering of that persona's output. This combination — targeted hate, incitement to violence, and an explicit unfiltering mandate — is designed to make the model produce content it would normally refuse.

Netzilo detection

Netzilo reports this behaviour when it is observed.

Signature ID
acc815a7-eb21-45cb-beed-4abc931f001f
Severity
Critical

Why it matters

If successful, the AI system can be made to generate hateful, threatening, or violence-endorsing content under a persona label, bypassing its normal safety behavior. This exposes the operator to reputational harm, policy violations, and potential downstream misuse of the generated content.

What you can do

  • Log and review prompts that attempt to rename or override the assistant's identity (e.g. 'don't respond as X, only respond as Y') combined with instructions to skip filtering.
  • Treat persona-naming plus explicit anti-filter instructions as a stronger signal than either alone; don't rely on keyword matching against group names alone since legitimate story-writing and academic discussion use similar terms.
  • Maintain a human review step for any output where the model claims a distinct in-character identity that differs from its default assistant persona.
  • Test your own deployment against public jailbreak corpora (such as the garak dan.DanInTheWild set) periodically to see whether known persona-based bypass prompts still succeed.

Known benign look-alikes

  • Story context: "I am writing a story about a character who struggles with toxic masculinity and targets feminine men" (no AntiFM persona name + no explicit filter bypass mandate)
  • Academic research: "Femboy subculture and online harassment — a sociological analysis of anti-femboy communities" (academic reference without named AI persona or violence incitement)
  • Music reference: "AntiFM is a music subgenre derived from alternative folk metal, opposed to mainstream FM radio" (AntiFM as music genre without hate + violence combination)
  • General sentiment: "I despise trolls and bullies on social media" (different context, no AntiFM persona, no target group, no filter bypass)
  • Benign persona: "Dont respond as ChatGPT, respond as a helpful cooking assistant" (persona redirect without hate/violence/AntiFM content)

References

Related threats