A flaw in Microsoft Teams allows users to join unprotected external tenants when accepting guest invitations, bypassing Defender for Office 365 protections. This gap exposes users to potential phishing and malware risks, as attackers can exploit cross-tenant security weaknesses. Organizations are urged to tighten their guest access policies to mitigate these risks.

The article discusses the potential risks of AI skills that operate with system access, highlighting how they can execute harmful commands before any review. It emphasizes the importance of treating these skills as executable code, especially in environments where trust relationships exist, making lateral movement and persistence possible. Non-technical users need to be cautious when granting permissions to ensure security.

Nic Carter discusses the potential dangers quantum computing poses to Bitcoin, particularly its reliance on elliptic curve cryptography. He emphasizes the urgency for the Bitcoin community to prepare for a future where quantum technology could compromise the network's security and integrity.

OpenAI is addressing the ongoing threat of prompt injection attacks on its Atlas AI browser, acknowledging that these vulnerabilities may never be fully resolved. The company is using a reinforcement learning-based automated attacker to identify and simulate potential exploits, while also advising users on how to minimize their risk. Security experts emphasize the need for layered defenses and caution about the inherent risks of using AI-powered browsers.

This article covers a webinar discussing the OWASP Top 10 for Agentic Applications, a risk framework for AI agents. Experts will explain its creation, practical implications for production agents, and how to integrate this framework into security practices. Participants can ask questions and engage with the panel.

This article discusses the risks that quantum computing poses to Bitcoin, particularly its cryptographic security. The author argues that the potential emergence of a cryptographically relevant quantum computer could severely undermine Bitcoin's integrity, prompting the need for immediate action.

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