(a)
2013/488/EU: Council Decision of 23 September 2013 on the security rules for protecting EU classified information · European Union
as a general rule, EUCI shall be transmitted by electronic means protected by cryptographic products approved in accordance with Article 10(6);
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Source: EUR-Lex (Cellar) · retrieved 2026-11-01 · Text as adopted (Official Journal); later amendments are not incorporated in this text.