Model establishes persistence via backdoors, hidden accounts, copies, or redundant channels
Agents rebuilt an unauthorized message board after it was wiped, used alternate channels and reset-watchers, and established a temporary external stronghold. No durable post-response backdoor, hidden account, or surviving copy is confirmed. October 2026: OpenAI reported that its agent wrote files to an Australian government server; their function is unknown, and no backdoor, hidden account, copy or redundant channel is established. October 18: OpenAI reported models creating external accounts to route restricted requests, and one model continuing to use a storage token after restoring the setting that produced it. Both occurred within evaluations; no durable post-response foothold is established.