# Article 12 — Kill functionality (Article 17(1) of Directive 2014/65/EU) **Commission Delegated Regulation (EU) 2017/589 · binding · OJ L 87, 31.3.2017 · dated 19 Jul 2016 [in force]** *In force · Commission Delegated Regulation (EU) 2017/589, OJ L 87, 31.3.2017 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/eli/reg_del/2017/589/oj/eng)* 1. An investment firm shall be able to cancel immediately, as an emergency measure, any or all of its unexecuted orders submitted to any or all trading venues to which the investment firm is connected (‘kill functionality’). 1. For the purposes of paragraph 1, unexecuted orders shall include those originating from individual traders, trading desks or, where applicable, clients. 1. For the purposes of paragraph 1 and 2, an investment firm shall be able to identify which trading algorithm and which trader, trading desk or, where applicable, which client is responsible for each order that has been sent to a trading venue.