By leveraging its huge user dataset, Hornet security is uniquely positioned to conduct a detailed examination of email-based threats and distill this into important insights for IT security professionals. Email continues to be an essential communication channel. However, in our analysis of more than 45 billion emails, 36.4% are categorized as “unwanted.” 96.4% of unwanted emails are spam or rejected outright due to external indicators, and just over 3.6% were flagged as malicious.