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ARTICLE · 06 FEBRUARY 2026

Civil Aviation Cybersecurity: EASA Part-IS Sets New Information Security Obligations

Jones Day
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Against the backdrop of intensifying cyber threats affecting aviation systems, EASA has adopted two texts, Delegated Regulation (EU) 2022/1645 and Implementing Regulation (EU) 2023/203...

United StatesTechnology
Ozan Akyurek
Ozan Akyurek
Nicolas Brice
Nicolas Brice
Dean Griffith
Dean Griffith
Olivier Haas
Olivier Haas
Jörg Hladjk
Jörg Hladjk
Holger Neumann
Holger Neumann
Mauricio Paez
Mauricio Paez
Alexandre De Verdun
Alexandre De Verdun
Giorgi Gugenishvili
Giorgi Gugenishvili
+1 more
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In Short

The Situation: The aviation industry is increasingly reliant on digital systems, from air traffic management to ground operations and predictive maintenance. This digital transformation has significantly broadened the sector's attack surface.

The Development: The European Union Aviation Safety Agency ("EASA") has adopted Delegated Regulation (EU) 2022/1645 and Implementing Regulation (EU) 2023/203, collectively known as Part-IS, introducing binding information security requirements across the EU civil aviation sector and mandating a structured Information Security Management System ("ISMS") aligned with aviation safety objectives. Depending on the entity, the rules apply from October 16, 2025, or February 22, 2026. Part-IS covers a wide range of stakeholders, including maintenance organizations, air operators, and air navigation service providers.

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