[5] In 1990, Bismuth began to work for Yedioth Ahronoth,[2] and was its correspondent in Paris between 1990 and 2004,[6] using his French passport to enter countries otherwise closed to Israeli nationals.

[citation needed] In April 2004, Bismuth was appointed Israeli Ambassador to Mauritania[7] by Minister of Foreign Affairs Silvan Shalom, where he served between July 2004 and August 2008.

On October 16, 2023, during the Israel–Hamas war Bismuth wrote on X (translated): "It must not be forgotten that even the "innocent citizens" - the cruel and monstrous people from Gaza took an active part in the pogrom in the Israeli settlements, in the systematic murder of Jews and the shedding of their blood, in the kidnapping of children, old people, and mothers, and in tying up babies and burning them alive!

"[16]At the end of December 2023, South Africa brought charges of "genocide" against Israel before the International Court of Justice.

In the 84-page application[16], Bismuth's statement, among other ones, is seen as alleged evidence of Israeli "genocidal intentions against the Palestinian people".