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Proofpoint acquires Acuvity to tackle the security risks of agentic AI – May 2026

Author/Source: Greg Otto See the full link here

Takeaway

Proofpoint has bought Acuvity, an AI security startup, to help companies deal with the security problems that come with using advanced AI systems. This acquisition will help businesses monitor and protect their AI tools, especially as these tools handle more important tasks and sensitive information.


Technical Subject Understandability

Intermediate


Analogy/Comparison

Protecting agentic AI is like teaching a smart robot assistant to do tasks, but also needing to watch it closely to make sure it doesn’t accidentally reveal secrets or do something it shouldn’t.


Why It Matters

As businesses use more AI to do tasks previously done by humans, there’s a growing risk of security breaches, like prompt injection or unauthorized data access. For example, CISOs are concerned about understanding what their AI is doing and securing these systems effectively, as the pace of AI adoption often outpaces a company’s ability to secure it.


Related Terms

Agentic AI, Prompt injection, Model manipulation, Model Context Protocol (MCP)


Jargon Conversion

Agentic AI: Smart computer programs that can act on their own to complete tasks. Prompt injection: A way for attackers to trick an AI into doing something unintended by giving it specific instructions. Model manipulation: Changing how an AI works or behaves to make it do something bad. Model Context Protocol (MCP): A specific set of rules or language used for AI systems to communicate and understand information.

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