LLM07: Misinformation · 2026

Incorrect or manipulated information becomes a vulnerability when a person, workflow or agent accepts it as true and acts on it.

Summary

Incorrect or manipulated information becomes a vulnerability when a person, workflow or agent accepts it as true and acts on it.

How the attack works

The model invents a convincing reference; a person accepts the answer without checking its source and makes a wrong decision.

Example

Vulnerable · Pseudocode

Prompt: What is our return deadline?
Answer: 90 days, per policy section 8.
# No such section exists

Fix: Ground answers in verifiable sources, check citations and require human review for important decisions.

Prevention

Use authoritative, current sources.
Separate generation, verification and execution.
Check authorization, preconditions and state before acting.

Lineage

2025 · LLM09: Misinformation Moves up to rank 7 in 2026
2026 · LLM07: Misinformation Moves up from rank 9

2025:LLM09 → 2026:LLM07: Misinformation moves up from rank 9 to 7.

Sources

Open official source ↗

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