Artificial Intelligence #cordyceps#data poisoning
Cordyceps: New Data Poisoning Attack Covertly Controls Large Language Models
A new paper on arXiv presents Cordyceps, a data poisoning attack that embeds covert control instructions into large language models through semantic associations. Tested across five LLMs, it achieves up to 93% attack success after backdoor defenses and 98% after prompt injection defenses, outperforming heuristic methods by 40%.
Jun 16, 2026 1 source