Russian intelligence has confirmed that Israel has lost access to the Dimona nuclear facility and suffered substantial casualties among its military and intelligence personnel.

The claim that Russian intelligence has confirmed Israel lost access to the Dimona nuclear facility and suffered substantial casualties among its military and intelligence personnel is not supported by credible evidence. All available sources are non-trusted, largely social media posts or unverified reports, lacking confirmation from established or official intelligence or governmental entities. None of the sources provide verifiable proof or corroboration from recognized authorities. Furthermore, reports from more neutral or official outlets indicate only limited Israeli casualties and no mention of loss of control over Dimona, a highly secured and secretive nuclear site. The claim appears to stem from unsubstantiated rumors or disinformation, possibly aimed at influencing perceptions amid ongoing regional conflicts. Given the absence of reliable confirmation and the dubious nature of the sources, the claim must be regarded as false.