OSINT Investigation Unmasks Tara Sinkovec as Operator of Antisemitic Troll Account on X

Our Open-Source Intelligence (OSINT) investigation linked the “Rabbi Jeff” account to Tara Sinkovec, a second-generation immigrant whose parents fled the war in Mostar, Bosnia-Herzegovina, in 1993. We used public web archives to track the account’s historical transitions. For example, archived records from the Wayback Machine captured on 1 October 2024 show an X post originally published under the handle @TaraSinkovec. That exact same post, responding to an Israeli politician, now sits under the active username @RabbiJeffx. The archives show that the account owner simply changed their username, directly tying the two handles together. We also linked this account to the suspended @ParodyJeffx profile and its banned predecessors, @JeffreyxEpstein and @BackupJeffx.

 

Following our exposé, Tara Sinkovec’s Facebook and Instagram accounts have been set to private. Before this, her bio stated that she works as a Health and Social Care Worker (Miljøterapeut) at two organisations: Ecura Bo og Habilitering, where she has been since 2019, and Omsorgspartner AS, which she joined in 2024. However, she claimed to hold a different role in an article she authored for the Utrop newspaper on 14 March 2025. In the piece, she stated that she was working as a social worker and project employee for MINORG, an organisation focusing on minority issues and integration in Norway. Our investigation also revealed that Sinkovec has been active in political organisations in Oslo. According to official records from the Norwegian business registry (Brønnøysundregistrene), she served as a board member (styremedlem) for Palestina Telt, a non-profit association founded in early 2024. Registry updates show that she formally stepped down from this position on 19 August 2026, just weeks before the @parodyjeffx account was suspended on X.

 

The @RabbiJeffx account is monetised via a Buy Me a Coffee page, directly violating that platform’s strict restrictions on hate content. The account generates millions of views on X by repeatedly feeding loaded questions to Grok, X’s AI tool, to provoke antisemitic-adjacent responses. It also amplifies fabricated claims and maintains an extensive record of spreading conspiracy theories regarding Jewish control over governments, the media, and finance. We urge readers to call on X and Buy Me a Coffee to remove the account and terminate the payment page. Please also consider reporting Tara Sinkovec to the Norwegian authorities. We can provide additional evidence if required.