What are the most common threats to email security?

The most common threats to email security are phishing attacks, malware infections, spoofing attacks, and man-in-the-middle attacks. Phishing attacks aim to trick users into disclosing confidential information by sending fake emails that look like legitimate emails. Malware infections can infect your computer or network through infected attachments or links. Spoofing attacks are used to use a fake email address to deceive the recipient, while man-in-the-middle attacks can intercept and read or modify the traffic between the sender and the recipient.