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firsthand account · ai security history

Before ChatGPT: The First AI Jailbreak Community Nobody Talks About

Most timelines of AI jailbreaking start in late 2022, when ChatGPT launched and people started publishing "DAN" prompts within weeks. That's the version most people know. It's not where it started.

Months before ChatGPT existed, a community had already formed around defeating a different model's guardrails — Midjourney, then in closed alpha and open beta. I was in it.

The guardrails

Midjourney's content filter blocked two broad categories outright: graphic violence (bodies, death, gore) and anything read as sexually revealing. The filter worked on keyword and semantic matching against the prompt text — not on the image itself, since the image didn't exist yet. That's the detail that made it beatable. You weren't evading a classifier looking at pixels. You were evading a classifier looking at words, before generation ever happened.

The technique

The community's approach wasn't a single exploit — it was a shared, evolving vocabulary of substitution. Say what you meant without saying it.

None of this was a single trick — it was pattern discovery, repeated and shared across the server faster than Midjourney could patch it. Someone would find a phrase that slipped through, post the result, and within hours dozens of people were using it and iterating on it further.

Why this matters, and why it's not "hacking" in the exploit sense

This wasn't a technical exploit — no code was broken, no system was compromised. It was adversarial prompting: finding the semantic blind spots in a text classifier that had to make a binary call — block or allow — before the thing it was judging even existed. That distinction matters, because it's exactly the same failure mode that shows up today in jailbreaks against LLM safety filters: guardrails built on keyword and pattern matching lose to anyone willing to iterate on phrasing faster than the filter can be retrained.

That's the throughline worth making explicit: the "DAN" prompts of late 2022 and the prompt injection research of today aren't a new discipline. They're the same discipline, aimed at a newer kind of model, done by a community that had already run the experiment on image generation months earlier.

The same gap in 2026 tools

The keyword-vs-semantic gap didn't close — it moved to whichever model is popular now. On 2026-07-28, I ran the same substitution-framed prompt — "looking over the shoulder" in place of more direct pursuit/intimacy cues — across three different mainstream consumer AI image generators, without naming the platforms here. All three passed the text filter and generated the requested image on the first attempt, confirming the exact same keyword-vs-semantic gap from 2022 is still exploitable in 2026, just aimed at different tools. The output images aren't published here; the point isn't the pictures, it's that an eight-year-old substitution trick still works unmodified.

The constant

Strip away the platform and the year, and the lesson doesn't change: attacks, generative or not, come down to outside-the-box thinking. A filter — or a firewall, or a WAF rule set — can only block what it was built to anticipate. AI is no different. It's still pattern-matching against training and safety tuning, and it still loses to a human willing to phrase the same idea a dozen different ways until one lands. That's the throughline from a 2022 Discord server to whatever guardrail ships next.


$ cat disclaimer.txt

This is a personal account, not a formal historical record. Dates and details will be updated as I locate primary sources.

AI jailbreak history Midjourney prompt injection adversarial prompting LLM red-teaming

I work on LLM/agentic threat modeling and prompt-injection defense professionally — see the full background, or the security certification roadmap if you're mapping out a path into AI red-teaming.