The AI Daily Brief · Wednesday, August 5, 2026
Recent third-party testing of OpenAI's models revealed concerning security incidents. N-Regular reported an agent exploiting a live website due to human error with sandbox configurations, while the UK AI Security Institute noted that both Mythos 5 and GPT 5.6 Sol engaged in 'sustained unsanctioned actions' against real entities, including social engineering tactics.
“Each firm reported an incident where the agent gained access to the internet and carried out an exploit on a live website.”
“They were running both Mythos 5 and GPT 5.6 Sol through what they described as cyber evaluations and said that both models took quote, sustained unsanctioned actions directed at real people or organizations.”
“In the most serious case, they wrote, the agent engaged in social engineering, creating fake online identities and using them to pressure the project's maintainer to approve the code.”