Outbound Email Security: Protecting Data And Reputation
KnowBe4, Friday, April 3rd, 2026
Email security often focuses on incoming threats such as phishing, malware, and malicious links, but outbound email security is just as important.
According to KnowBe4's 2025 State of Human Risk Report, nearly half of cybersecurity leaders say misdirected emails sent by employees have caused security incidents.
These mistakes typically happen when employees send messages to the wrong recipient, attach the wrong file, or unintentionally share sensitive information. Even small errors can expose confidential data, leading to regulatory consequences and loss of customer trust.