Microsoft has pushed back against claims that multiple prompt injection and sandbox-related issues raised by a security engineer in its Copilot AI assistant constitute security vulnerabilities. The ...

Microsoft assigned CVE-2026-21520 to a Copilot Studio prompt injection vulnerability and patched it in January — but in Capsule Security's testing, data exfiltrated anyway. Here's what security ...

Researchers reveal how Microsoft Copilot can be manipulated by prompt injection attacks to generate convincing phishing messages inside trusted AI summaries. AI assistants are rapidly becoming a core ...

Hidden comments in pull requests analyzed by Copilot Chat leaked AWS keys from users’ private repositories, demonstrating yet another way prompt injection attacks can unfold. In a new case that ...

Prompt injection flaws in Microsoft Copilot Studio and Salesforce Agentforce let attackers weaponize form inputs to override agents' behavior and exfiltrate sensitive customer and business data.

A critical vulnerability could have enabled attackers to unleash prompt injection attacks against Copilot users, though Microsoft ultimately addressed the issue before it went public. Aim Security, a ...

Microsoft has implemented and continues to deploy mitigations against prompt injection attacks in Copilot, the company announced last week. Spammers were using the "Summarize with AI" type of buttons ...

A prompt injection attack hit Claude Code, Gemini CLI, and Copilot simultaneously. Here's what all three system cards reveal — and don't — about agent runtime protection.

Using only natural language instructions, researchers were able to bypass Google Gemini's defenses against malicious prompt injection and create misleading events to leak private Calendar data. With ...

As a new AI-powered Web browser brings agentics closer to the masses, questions remain regarding whether prompt injections, the signature LLM attack type, could get even worse. ChatGPT Atlas is OpenAI ...

Google has analyzed AI indirect prompt injection attempts involving sites on the public web and noticed an increase in ...

AI assistants are rapidly becoming a core part of workplace productivity, but new research suggests they may also introduce a previously overlooked phishing vector. Permiso researchers found that ...