Preventing Data Breaches Before They Happen: Why Outbound Email Security Can't Be Ignored
KnowBe4, Wednesday, January 21st, 2026
While organizations invest heavily in stopping threats from entering their networks, a critical vulnerability often goes underprotected: sensitive data leaving the organization through email.
Every day, employees send thousands of emails containing confidential information - patient records, financial data, legal documents, and personally identifiable information (PII). And every day, some of those emails go to the wrong recipient.
For organizations, misdirected emails represent more than just embarrassing mistakes. They're compliance violations, regulatory breaches and reputational disasters waiting to happen. In highly regulated industries like healthcare, financial services, legal and insurance, a single misdirected email can trigger investigations, fines, lawsuits and loss of customer trust.