Peek-A-Boo! 🫣 Emoji Smuggling and Modern LLMs – FireTail Blog
ID: e95a3404-e6a7-5e14-879e-8bbd14e9e06d
STIX ID: report--e95a3404-e6a7-5e14-879e-8bbd14e9e06d
Feed Name: Security Boulevard
Threat Score
This research describes an "emoji smuggling" technique that embeds hidden UTF‑8/Unicode payloads inside emoji (using variation selectors and invisible characters) to evade human review and LLM safety filters; researchers demonstrated a PoC on an LLM (Gemini), showed how a decoding key unlocks hidden commands, and recommend monitoring raw byte sequences of inputs as the primary mitigation.
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