Get Permission Hackers have targeted units of local government in the U.S. by attempting to exploit unpatched vulnerabilities in Microsoft Exchange email servers, according to a new report by the security firm FireEye. While Microsoft has said that a Chinese-linked hacking group that has been exploiting the vulnerabilities in Exchange is known to target infectious disease researchers, law firms, higher education institutions, defense contractors, policy think tanks and nongovernment organizations, FireEye analysts note that other groups appear to have set their sights on local government networks. "Based on our telemetry, we have identified an array of affected victims, including U.S.-based retailers, local governments, a university and an engineering firm. Related activity may also include a Southeast Asian government and Central Asian telecom," according to the FireEye report.