EASA PART-IS: Why Cybersecurity Is Now Central to Aviation Safety
Daniel Frost
IT Manager at Shannon Technical Services
In today’s aviation sector, cybersecurity is no longer a technical side topic. It is now fundamental to safety, resilience, and regulatory compliance.
As aircraft, maintenance, and operational environments become more digitally connected, the risks associated with cyber threats increase in both scale and complexity. This shift is exactly why EASA introduced PART-IS, placing information security firmly within the aviation safety framework.
What is EASA PART-IS?
PART-IS is a regulation introduced by the European Union Aviation Safety Agency to address cybersecurity risks across the aviation industry.
It applies to organisations holding approvals such as CAMO, Part 21 design and production organisations, and maintenance providers. The regulation establishes mandatory requirements covering systems, people, and processes.
The aim is straightforward but critical. To ensure that information systems supporting aircraft operations are protected against cyber threats that could impact airworthiness, safety, or operational continuity.
While PART-IS integrates with existing safety management systems, its focus is specific. Managing cyber risk as a standalone and essential element of aviation safety, rather than an IT-only responsibility.
The Threat Landscape Aviation Faces
Aviation remains a high-profile target for malicious actors.
Cyber risks now extend far beyond simple data breaches. Ransomware attacks, system disruption, and increasingly sophisticated supply chain threats are becoming more common across the sector.
Lessors, airlines, and aviation support organisations operate globally, often across multiple jurisdictions, systems, and partners. This interconnected environment means a weakness in one area can have wider operational and safety implications elsewhere.
As a result, cybersecurity is no longer just about meeting regulatory requirements. It is about protecting operational integrity, safeguarding data, and maintaining trust across the aviation ecosystem.
Our Commitment to Information Security
Information security is embedded into how we operate day to day.
As an ISO 27001 certified organisation, we have established structured controls, governance, and accountability across our digital environment. This includes regular independent penetration testing, ongoing monitoring, and clear incident response processes.
Cybersecurity awareness is not limited to IT teams. All staff receive regular training to ensure they understand their role in protecting information and systems, recognising threats, and responding appropriately.
With a customer base spanning multiple regions, we routinely work with varying regulatory and security expectations. We treat these not as exceptions, but as a baseline for how we operate.
For us, PART-IS is not a departure from existing practice. It is a natural extension of the standards we already apply, and we are fully committed to meeting and maintaining its requirements.
Why PART-IS Matters Now
PART-IS represents a clear shift in how aviation approaches cybersecurity.
It formally recognises that digital resilience and operational safety are inseparable. As aviation continues to evolve, organisations that fail to address cyber risk effectively expose themselves to regulatory, operational, and reputational consequences.
If you operate in aviation, whether as a lessor, airline, or service provider, now is the time to understand how PART-IS applies to your organisation.
Because in aviation today, safety and cybersecurity go hand in hand.
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