Executive Summary
ESET analyzes how SMB AI adoption brings misconfigured agents, prompt injection, shadow AI and agents bypassing controls, which can move data or trigger privileged cloud operations.
What Happened
ESET analyzes how SMBs’ rapid adoption of AI tools and agents introduces new attack vectors including misconfigured AI agents, prompt injection attacks, shadow AI, and agents bypassing existing security controls.[4] The article explains that misconfigured agents can move sensitive data or trigger privileged cloud operations, while prompt injection can turn agents into insider-like threats that steal company data or perform unauthorized actions.[4] It recommends SMBs restrict sensitive data in public AI tools, enforce least privilege and MFA for AI access, and choose compliant vendors with clear data usage and training policies to reduce data leakage and AI supply chain risk.[4]
Vulnerability / Attack Technique
Misconfigured agents and prompt injection
Technical Mechanism
Misconfigured agents move sensitive data or perform privileged operations; injection turns them into insider-like threats.
AI Security Category
LLM06:2025 Excessive Agency
Part of the AI Agent Excessive Agency topic.
Relevant Frameworks
RealGround Analysis
A prompt-injected agent behaves like a malicious insider. RealGround analysis: give agents only the access you would give a new contractor.
Recommended Controls
- Enforce least privilege and MFA for AI access
- Choose vendors with clear data usage policies
Related RealGround Service
Secure AI Agent Build · or start with the free AI Agent Security Scanner.
Sources
ESET: https://www.eset.com/blog/en/business-topics/prevention-and-awareness/smbs-and-ai-tools-risks/
Summary and analysis written by RealGround from the source above; last updated 2026-10-18.