When we talk about cybersecurity, it’s easy to think of firewalls, passwords, and antivirus software. But Part-IS challenges that view. Part-IS is a regulation that connects information security directly to aviation safety, and its impact goes far beyond the IT department.
As aviation operations become more digitally interconnected, understanding these risks is more important than ever. This blog explores how Part-IS bridges the gap between cybersecurity and aviation safety, highlighting why it matters for the entire organisation.
What is EASA Part-IS and who does it affect?
EASA Part-IS introduces mandatory requirements for aviation organisations to implement an Information Security Management System (ISMS) and for authorities to oversee it. Its goal is to protect aviation operations from cyber threats that could compromise safety, continuity, or compliance.
The regulation comes into force in two phases:
- From 16 October 2025: Airport operators, apron control services, and aircraft manufacturers.
- From 22 February 2026: Airlines, maintenance organisations, CAMOs, training providers, ANSPs, U-space service providers, and aviation authorities.
This broad scope means that Part-IS is not just a technical regulation – it’s an operational, strategic, and cultural shift.
Here’s why Part-IS should be on the radar of every department:
- Operational Safety Is at Stake
Cyber incidents can have direct consequences on flight safety. A compromised system could mislead air traffic control, disrupt flight planning, or interfere with maintenance records. These aren’t theoretical risks—they’re real-world threats with potentially catastrophic outcomes. - Human Factors Drive Risk
Technology alone can’t prevent breaches. Many incidents stem from human error—clicking on phishing links, misconfiguring systems, or failing to report suspicious activity. Part-IS places strong emphasis on training, awareness, and behavioural change. - Legal and Compliance Implications
Non-compliance with Part-IS can lead to regulatory penalties, reputational damage, and even operational restrictions. Legal and compliance teams must be involved in interpreting obligations, managing risk exposure, and preparing for oversight. - Supply Chain Vulnerabilities
Aviation is deeply interconnected. From ground handlers to software vendors, third-party providers play a critical role in operations. Part-IS requires organisations to assess and manage risks across their supply chains. - Strategic Resilience and Reputation
Cybersecurity is now a Board-level issue. Part-IS offers a framework for building resilience, protecting brand reputation, and demonstrating leadership in aviation safety. Organisations that embrace it proactively will be better positioned to adapt, recover, and lead in a digital-first world.
”Use Part-IS as a catalyst for broader transformation - integrating cybersecurity into business strategy, risk management, and innovation.
Final thought
Part-IS is a company-wide responsibility. By moving beyond the IT silo and embracing a holistic approach, aviation organisations can build a safer, more resilient future. It’s not just about compliance – it’s about leadership in a digital age.
Empower your teams and prepare for compliance
Our EASA Part-IS training courses are designed for aviation professionals across departments – from IT and operations to compliance, legal, and leadership. Enquire today to secure your place.
