Our group submitted an article to a prestigious journal and while under review, we received an email from a most probably "predatory" journal, basically saying that your article can be published immediately after you pay the fee.
What makes me worry is that they somehow know the topic and abstract. Should I contact our current journal and mention it?
I suspect one reviewer leaked the article. Unfortunately, I am afraid it might negatively affect our current submission. None of the authors leaked the article online.