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Weekly AI Security Roundup: Week 30, July 2026

This edition summarizes key developments in AI security. The focus is on a shift in phishing tactics toward Teams-based social engineering and a new partnership between OpenAI and Hugging Face to improve safety standards during model evaluation.

High relevanceAI SecurityRed TeamingModel SecuritySecure AI Development

Weekly AI Security Roundup

In this issue, we analyze current trends from news, research, and vulnerabilities. We examine the impact of infrastructure disruptions on attack vectors and the necessity for collaborative defense strategies in AI development.

Weekly trends

  • A significant decline in traditional phishing methods following the outage of Tycoon2FA, replaced by a focus on Teams-based social engineering and automated Attack Chains.
  • Increasing complexity of attack chains allows adversaries to bypass standard Guardrails more effectively than in previous campaigns.
  • A paradigm shift toward collaborative defense against advanced cyber capabilities, exemplified by the partnership between OpenAI and Hugging Face.

Referenced articles

Takeaways

  • Security teams must incorporate new tactics like Teams-based social engineering into their Threat Models.
  • The fragility of AI development pipelines when exposed to targeted attacks during the training phase requires robust defensive measures.
  • Sharing security findings between partners is essential for building more resilient Supply Chains in the AI sector.

Sources