He's telling Facebook: "If you want to sue me, you're going to have to sue Mark Zuckerberg."
He says a lawyer for Facebook pressed him this week to close his online business Like Store, calling it illegal. Like Store promises to enhance companies' online reputations by offering Facebook users free content only accessible by clicking "like" on the companies' profiles.
The Israeli acknowledged on Saturday his company violates Facebook's terms of use, but says many U.S. companies offer similar services.