A review of 10,072,682 emails revealed 203,000 malicious links within were deemed safe by security systems – a ratio of one unstopped malicious link for every 50 emails inspected.
The Mimecast report also found an 80% increase impersonation attacks in comparison to last quarters’ report with 41,605 caught. Additionally, 19,086,877 pieces of spam, 13,176 emails containing dangerous file types, and 15,656 malware attachments were all missed by these incumbent providers and delivered to users’ inboxes.