Today’s businesses rely heavily on email to communicate with clients, partners, and colleagues. But research suggests that organizations are lacking when it comes to protecting themselves against the increasing number of customized and complex attacks. When polled by Mimecast, 83% of IT security managers said they see email as a primary source of attack, yet 65% claim they aren’t fully equipped to resolve the risks associated with email threats. Respondents’ perceptions of primary security threats also appeared to change based on having experienced a successful breach. However, viruses, malware, spam, and insider threats remain the top concerns for both groups, both with and without breach experience.