---
title: "Cybersecurity: how AI is accelerating threats… and helping cyber defenders — Marsanne Studio AI watch"
description: "AI is intensifying cyberattacks on SMEs and mid-sized companies while giving cyber defence teams new detection and response tools."
url: "https://marsanne.studio/en/ai-watch/cybersecurity-how-ai-is-accelerating-threats-and-helping-cyber-e6daf8/"
lang: "en"
---

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Opinion · 22 September 2026

# Cybersecurity: how AI is accelerating threats… and helping cyber defenders

Original title, in French: “Cybersécurité : comment l’IA accélère les menaces… et aide les cyber-défenseurs”

**Publication**

Silicon.fr (France)

**Author**

Philippe Leroy

**Published on**

22 September 2026 · read in the page structured data · updated on 22 September 2026

## Summary

The article describes AI as a threat multiplier in cybersecurity: vulnerability detection, social engineering, autonomous malware and shadow AI are growing within organisations. SMEs and mid-sized companies, which are less well equipped, are becoming prime targets. The author cites the cyberattack suffered by Jaguar Land Rover, which led to a three-week plant shutdown, affected more than 5,000 suppliers and had an estimated cost of several billion euros. The regulatory framework is tightening with the Cyber Resilience Act, the AI Act and the NIS 2 Directive. On the defence side, AI could help identify attack paths, better understand complex architectures and reduce fatigue among SOC teams. The author, a cybersecurity expert at OFFMYDATA, recommends AI governance, data mapping and staff training.

Summary based on the full text of the article.

[Read the article on Silicon.fr →](https://www.silicon.fr/cybersecurite-1371/cybersecurite-comment-lia-accelere-les-menaces-et-aide-les-cyber-defenseurs-229271)

## Figures cited

-   5,000 companies
    
    suppliers and subcontractors affected by the attack on Jaguar Land Rover
    
    Jaguar Land Rover, cyberattack, United Kingdom
    
    > « arrêt des usines pendant 3 semaines, les équipes en chômage technique, plus de 5 000 fournisseurs et sous-traitants impactés dont certains menacés de faillite »
    

## Classification

**Country**

United Kingdom, France

**Company size**

SMEs, Mid-sized companies, Large companies

**Industries**

Software vendors, IT services companies, telecoms · Industry and manufacturing · All industries, or industry not specified

**Companies**

Anssi (cited), OFFMYDATA (cited), Jaguar Land Rover (cited)

**Keywords**

cybersecurity, shadow ai, smes, mid-sized companies, ai governance, regulation

Entry written by Marsanne Studio from the cited article, with the help of an AI model (claude-sonnet-5). The rights to the article and its illustrations belong to Silicon.fr and its author. Entry translated from French by Claude Sonnet 5.5.