Get Permission Computer security researchers have acquired an enormous list of compromised email servers from the perpetrators of the mass Microsoft Exchange compromises - a lucky but not uncommon find that is now being put to use to alert infected organizations. The victim list contains 86,000 IP addresses of Exchange servers infected worldwide as the result of the latest vulnerabilities revealed by Microsoft last week, says Allison Nixon, chief research officer with Unit 221B, a New York-based cybersecurity company. The list is now being used to power a web-based service that can help organizations identify if their email systems were infected in the first wave of attacks, Nixon says. That service, Check My OWA, is now active.