How to protect yourself from 'insurance revenge' during divorce
California has built-in legal protections to guard against insurance revenge during divorce. When couples file for divorce, there are automatic temporary restraining orders that take effect, and standing court orders prohibit either party from canceling any insurance. You can simply send a letter letting your insurer know that you are going through a divorce and that they are not allowed to cancel you as a beneficiary or to cancel your insurance while the divorce is pending.
Source:Insure.com