Prompt-Guard-86M — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
1
occurrences
First Seen
November 15, 2025
Last Seen
November 15, 2025

Prompt-Guard-86M is a technology platform aimed at enforcing AI prompt safety and guardrails.

Prompt-Guard-86M is a technology platform tracked across 2 threat clusters and 1 intelligence report mention on ThreatCluster. First observed November 15, 2025; most recent activity November 15, 2025.

Overview

Prompt-Guard-86M is a technology platform aimed at enforcing AI prompt safety and guardrails. Recent reporting points to vulnerabilities where specific tokens can flip AI guardrail verdicts, suggesting guardrails can be bypassed via token-based prompt injections. This is significant in cybersecurity as it reveals potential pathways for disallowed content generation and malicious use if such bypasses surface in production AI systems.

Related Threat Clusters

  • EchoGram Technique Exploits AI Guardrails Using Specific Prompts

    Security researchers from HiddenLayer have developed a new attack method called EchoGram, which targets the guardrails of large language models (LLMs). By using specific phrases like '=coffee', attackers can bypass…

    2 articles · Updated November 15, 2025
  • EchoGram Attack Bypasses AI Guardrails

    Researchers from HiddenLayer have identified a new attack technique called EchoGram that can bypass AI guardrails designed to filter harmful input in large language models (LLMs). This technique allows users to…

    3 articles · Updated November 17, 2025

Recent Intelligence Reports

  • EchoGram tokens like '=coffee' flip AI guardrail verdicts — Theregister · November 15, 2025

Frequently asked questions

What is Prompt-Guard-86M?

Prompt-Guard-86M is a technology platform aimed at enforcing AI prompt safety and guardrails.

Is Prompt-Guard-86M still active?

The most recent intelligence report mentioning Prompt-Guard-86M on ThreatCluster is dated November 15, 2025.

What is Prompt-Guard-86M associated with?

Across ThreatCluster reporting, Prompt-Guard-86M most frequently co-occurs with Prompt Injection, Claude 4 Sonnet, GPT-4o, Qwen3Guard 0.6B, TextAttack.

What are the latest developments involving Prompt-Guard-86M?

The most significant recent cluster is “EchoGram Technique Exploits AI Guardrails Using Specific Prompts” (2 articles · Updated November 15, 2025). Prompt-Guard-86M appears across 2 threat clusters in total, listed above with sources.

How much reporting does ThreatCluster have on Prompt-Guard-86M?

Prompt-Guard-86M appears in 1 intelligence report mention across 2 deduplicated threat clusters, aggregated from 17,000+ monitored sources.

CVSS v3.1 Breakdown