우크라이나를 침공하기 전 블라디미르 푸틴은 자신의 독살을 방지하기위해 보디가드, 요리사, 세탁부, 비서진 등 스탭 1천명을 교체했다고

Ex-Black Ops Agent: This Is How Putin Could Meet His End

https://www.thedailybeast.com/ex-black-ops-agent-explains-how-putin-could-meet-his-end?ref=scroll

Putin replaced 1,000 personal staff members in February over fears they would poison him, report says

https://www.businessinsider.com/ukraine-russia-putin-replaced-staffers-over-fears-poison-him-report-2022-3