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GUARDRAIL-EVASION

Guardrail-Evasion

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Varonis Launches Agent IBAC to Constrain AI Agent Actions at Runtime

Varonis Launches Agent IBAC to Constrain AI Agent Actions at Runtime

FIRST LOOK ATLAS OWASP MEDIUM Moderate risk · Monitor closely ▲ 7.2 BleepingComputer

Varonis has released Agent Intent-Based Access Control (IBAC) within its Atlas platform, a runtime enforcement layer that compares an AI agent's received instructions against its actual tool calls and data access to detect and block out-of-policy behaviour. While the capability is a defensive control, its deployment introduces new attack surface: adversaries who understand the intent-matching logic may craft prompt injections or instruction manipulation that causes the agent's declared intent to align with a malicious action, bypassing the guardrail. Security teams should treat Agent IBAC as a layer within a defence-in-depth strategy rather than a standalone control, and test it aggressively against adversarial prompt scenarios before trusting it in production.

AWS Adds Bedrock Guardrails Best Practices for Code Generation

AWS Adds Bedrock Guardrails Best Practices for Code Generation

FIRST LOOK ATLAS OWASP MEDIUM Moderate risk · Monitor closely ▲ 6.2 AWS Machine Learning Blog

AWS has published guidance on applying Amazon Bedrock Guardrails to code generation workflows, detailing how to configure content filters, topic denials, and output controls for AI-assisted coding pipelines. For defenders, this surfaces the inverse risk: organisations that misconfigure or partially implement these guardrails expose code generation endpoints to prompt injection, malicious code output, and filter-evasion attacks. Security teams must treat guardrail configuration as a first-class security control, not a default-on safety net.

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