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Kramer’s Startup Spree Helps Turn Israel Into Cyber Power

Israel’s campaign to become a cybersecurity powerhouse, an effort trumpeted by Prime Minister Benjamin Netanyahu, owes a debt to entrepreneur and investor Shlomo Kramer.

Over more than two decades, Kramer has founded or backed six Israeli online-security companies, amassing a personal fortune of about $800 million, according to data compiled by Bloomberg. The 47-year-old has taken the money earned from deals and initial public offerings and plowed it back into new startups and technologies, developing fresh ways to fend off virtual enemies.