Industry 4.0 and the challenge of cyber resilience

Industry 4.0 - The 2026 edition of the Global Industrie trade fair, held in Paris from 17 to 20 March, highlighted the growing vulnerability of connected production lines. As the digitalisation of the factory of the future reaches new heights, cybersecurity is emerging as the first line of defence for production. Supply chain attacks, targeting industrial software suppliers to cripple thousands of production sites simultaneously, have increased dramatically. In response, companies are now adopting mandatory audits to secure every link in their digital chain.

The convergence of information technology (IT) and operational technology (OT) requires a complete overhaul of data security. On the exhibition floor, demonstrations of secure “digital twins” showed how to simulate a cyberattack to test the resilience of a production line even before its physical deployment. The challenge is to protect not only employees’ personal data, but above all industrial know-how and critical machine parameters, the alteration of which could lead to massive production stoppages.

To counter these threats, AI is becoming an active shield at the heart of Industry 4.0 factories. Real-time anomaly detection systems monitor data flows between robots and central servers, capable of isolating a compromised machine within milliseconds. This ‘Zero Trust’ strategy, applied to the workshop floor, ensures that every command executed on the production line is authenticated. Cybersecurity should no longer be seen as a constraint, but as a driver of trust that is essential to the sustainability of a sovereign industry.