Hamas leader Yahya Sinwar has been out of contact for a significant period of time, leading to speculation that he may be dead. Israeli media outlets have reported that the IDF is investigating this possibility, although there is currently no concrete evidence to support it. The Shin Bet agency, on the other hand, believes that Sinwar is still alive. Some sources have noted that Sinwar has disappeared temporarily in the past and then reappeared to issue messages. Israeli security officials have stated that the speculation about Sinwar's death is currently without any real basis.