Prime Minister Albanese condemns ‘shocking acts’ after suspicious fire at Melbourne synagogue with 20 people inside
Prime Minister Albanese condemns ‘shocking acts’ after suspicious fire at Melbourne synagogue with 20 people inside

www.theguardian.com
PM condemns ‘shocking acts’ after suspicious fire at Melbourne synagogue with 20 people inside

Horrible stuff. I'm glad no-one was injured, antisemitism has no place here (and attacking a synagogue and the surrounding community is certainly that).
After organised crime (police) determined Jews were behind the long spree of "antisemitic" attacks including the fake caravan bomb I wouldn't be surprised if this was yet another staged attack
That string of attacks was determined to be a hoax, but I don't know where that claim of Jews is coming from. Police claim the fake caravan bomb plot "was concocted by criminals who wanted to cause fear for personal benefit" so members could hand over evidence or information to reduce their prison sentences[1]. The named key suspects are associated with the Nomad bikie gang and included Sayed Moosawi (Arabic names) and Sayet Erhan Akca (Turkish surname and believed fled to Turkey, so I assume they're most likely Turkish). Again, this was determined to be a criminal plot for their own benefit, not a real political act of antisemitism.
So unless I missed some announcement about these, I don't think Zionists or other Jews were behind that hoax. But I am wary that staged false flag attacks are a realistic possibility and we should not jump to conclusions.