Prompt Injection
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Reprompt attack could exfiltrate Microsoft Copilot data with one click
Researchers disclosed Reprompt, a method that can use a single Copilot URL click to inject prompts and enable hidden, ongoing data exfiltration. Microsoft has addressed the issue and enterprise Copilot customers are not affected.
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AI agents flagged as new insider threat in 2026 by Palo Alto report
A Palo Alto Networks predictions report warns AI agents are a new insider threat in 2026 as Gartner forecasts 40 percent of enterprise apps will adopt task specific agents. The report highlights privilege risk, prompt injection and defensive uses.
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Google adds User Alignment Critic to Chrome to protect Gemini agentic browsing
Google is introducing a separate, isolated LLM called User Alignment Critic in Chrome to vet actions taken by Gemini-powered agentic browsing. The architecture also uses origin restrictions, user prompts for sensitive steps, prompt-injection detection and automated red-teaming; Google is offering bounties up to $20,000 and has not given a public rollout date.
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Amazon opens invite-only bug bounty for NOVA models to outside researchers
Amazon has launched an invite-only bug bounty program for its NOVA family of language models, allowing select researchers to test and be paid for findings on issues such as prompt injection, jailbreaking and other vulnerabilities, with the company saying the effort will help secure models integrated across Amazon and customer systems.
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Researchers disclose three now-patched vulnerabilities in Google’s Gemini AI
Researchers disclosed three patched vulnerabilities in Google’s Gemini AI that could have exposed users to privacy risks, affecting Cloud Assist, the Search Personalization model and the Browsing Tool, Tenable said; Google has applied mitigations.
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Threat actors weaponize HexStrike AI to exploit recently disclosed vulnerabilities, Check Point warns
Threat actors are weaponizing HexStrike AI, an AI-driven offensive security tool, to exploit recently disclosed vulnerabilities, prompting Check Point to urge immediate patching and hardening of affected systems.
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Google Enhances AI Security with Layered Defenses Against Prompt Injection Attacks
Google has taken significant steps to enhance the security of its generative AI systems by implementing layered defenses against indirect prompt injections, which pose a new cybersecurity risk. These measures include advanced filtering techniques and a proactive approach to preventing malicious user inputs.
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Security Flaw in GitLab’s AI Assistant Exposes Source Code to Attackers
A significant vulnerability in GitLab’s AI coding assistant, Duo, has been discovered, allowing potential theft of source code and injection of malicious instructions, prompting urgent security measures from GitLab.







