As aviation continues its digital evolution, the sector faces growing exposure to cyber threats – from ransomware attacks on airport systems to data breaches affecting passenger records. Recognising this, the European Union Aviation Safety Agency (EASA) has introduced Part-IS, a regulation that places cybersecurity and information security firmly within the scope of aviation safety.
At the heart of Part-IS is the requirement for aviation organisations to implement an Information Security Management System (ISMS). But what exactly is an ISMS, and why is it so vital to the future of safe, secure aviation? This blog explores the role of an ISMS in aviation, explaining why it’s essential for safety, security, and regulatory compliance.
What is an ISMS?
An ISMS is a structured framework of policies, procedures, and technical controls designed to manage information security risks. It’s not just about firewalls and antivirus software, it’s about creating a systematic, organisation-wide approach to protecting sensitive data and critical systems.
Key components of an ISMS include:
- Risk assessment and treatment: Identifying threats and deciding how to mitigate them.
- Access control: Ensuring only authorised personnel can access sensitive systems.
- Incident response: Having clear plans for detecting, reporting, and recovering from cyber incidents.
- Continuous improvement: Regular audits, reviews, and updates to stay ahead of evolving threats.
Most ISMS frameworks are based on international standards like ISO/IEC 27001, which is widely recognised across industries and aligns well with aviation’s safety culture.
Why ISMS is crucial for Aviation Safety
In aviation, safety has traditionally focused on physical risks – aircraft performance, human factors, and operational procedures. But today, digital vulnerabilities can have direct safety implications. A cyberattack on flight planning software, for example, could lead to delays, misrouting, or worse.
An ISMS helps aviation organisations:
- Protect operational continuity: Ensuring systems like air traffic control, maintenance records, and crew scheduling remain secure and available.
- Safeguard passenger and crew data: Meeting legal obligations under GDPR and building public trust.
- Respond effectively to incidents: Minimising disruption and reputational damage.
- Demonstrate regulatory compliance: Meeting the requirements of EASA Part-IS, which mandates ISMS integration into existing Safety Management Systems (SMS).
”Most ISMS frameworks are based on international standards like ISO/IEC 27001, which is widely recognised across industries and aligns well with aviation’s safety culture.
What does EASA Part-IS require?
Part-IS applies to a wide range of aviation entities operating in the UK and across Europe, including:
- Airlines and business aviation operators
- Maintenance organisations (Part-145 and CAMOs)
- Aerodrome operators
- Civil aviation authorities
- Air navigation and U-space service providers
By February 2026, these organisations must establish and maintain an ISMS appropriate to their size and risk profile.
ISMS in practice: Building a cyber-safe culture
Implementing an ISMS isn’t just a technical exercise – it’s a cultural shift and a systematic approach to managing information security risks and protecting critical assets. Everyone in the organisation, from IT teams to flight crews, plays a role in maintaining information security. This includes:
- Recognising phishing attempts
- Using secure passwords and devices
- Reporting suspicious activity
- Following secure procedures for data handling and system access
Just as safety is embedded into every aspect of aviation operations, cybersecurity must become second nature.
”Implementing an ISMS isn’t just a technical exercise - it’s a cultural shift and a systematic approach to managing information security risks and protecting critical assets.
Get ahead with Part-IS training
Preparing for Part-IS compliance starts with understanding what an ISMS is and how to implement it effectively. Our EASA Part-IS training courses are tailored for aviation professionals across departments – from IT and operations to compliance, legal, and leadership. Enquire today to secure your place.
