# Semnet builds security position around agentic AI

- Link: https://www.directorstalkinterviews.com/semnet-builds-security-position-around-agentic-ai/4121261175
- Published: 2026-08-25T17:31:00+01:00
- Author: Amilia Stone

Agentic AI creates a clear security problem. Unlike standard AI tools, autonomous
agents can access systems, retrieve data and carry out actions without constant 
human control.

Semnet argues that AI agents need several layers of protection because no single
security control is likely to be enough. An agent may have valid credentials and
approved access, yet still make a damaging decision because it has been manipulated,
given bad information or allowed to act too broadly.

The first layer is AI monitoring. Security tools can track prompts, outputs, retrieved
information, APIs and system activity. They can look for prompt injection, compromised
data, information leakage and unusual behaviour. That provides an early warning 
system, but it does not remove the underlying risk.

AI security tools can miss attacks. They can also incorrectly flag legitimate activity.
More importantly, an AI agent does not need to be hacked to make the wrong decision.
Semnet therefore sees access control as the next layer.

Privileged access management can limit which systems an AI agent can reach, what
it can do once connected and how long its permissions remain active. Higher-risk
actions can also require additional approval. This changes the risk profile. If 
an AI agent is manipulated, its ability to cause damage can still be restricted.

Semnet points to two approaches already developing in the market. Palo Alto Networks,
Idira and CyberArk represent a model based on identity, temporary permissions and
zero standing privilege. F5 AI Security, Delinea and StrongDM represent an approach
focused on controlling privileged activity as it happens.

Recent acquisitions show how quickly these areas are converging. Palo Alto Networks
completed its acquisition of CyberArk in February 2026 and introduced Idira in May
2026. F5 completed its acquisition of CalypsoAI in September 2025. Delinea completed
its acquisition of StrongDM in March 2026.

AI security, identity management and privileged access are becoming more closely
connected. Semnet adds a third layer around the data itself.

An AI agent may need access to a database without needing access to every piece 
of readable information inside it. Separating system access from data access can
reduce the amount of sensitive information exposed if another control fails.

Vaultrex is designed to control access to protected data using asymmetric and threshold-
based key controls, selective decryption and a separation between database access
and access to plaintext information.

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