It's come out that people working for Israel’s security services who speak Persian, Iran’s primary language, called senior Iranian officials on their cellphones and warned them that they, too, would die unless they ceased supporting the regime of Ayatollah Ali Khamenei, Iran’s supreme leader...[it is] estimated that more than 20 Iranians in positions of power were contacted.

Implying that their wives and children will be murdered as well if the demand wasn't met.

https://www.washingtonpost.com..../national-security/2