(3) ‘legacy ICT system’ means an ICT system that has reached the end of its lifecycle (end-of-life), that is not suitable for upgrades or fixes, for technological or commercial reasons, or is no longer supported by its supplier or by an ICT third-party service provider, but that is still in use and supports the functions of the financial entity;

DORA, Article 3, point (3).

• Not used outside Article 3.