Adallom, which aims to secure the growing pools of data stored in SaaS systems, now has $15 million in series B funding to boost its sales presence in the U.S. and its R&D in Israel. Most legacy security software vendors focus on perimeter-based defenses, proxies and firewalls, but as more corporate data flows into third-party SaaS systems, the data is no longer inside the perimeter to be defended.