1. Email Authentication Protocols - SPF (Sender Policy Framework): SPF allows the receiving email server to check if an email claiming to come from a specific domain is sent by an IP address authorized by that domain’s administrators. - DKIM (DomainKeys Identified Mail): DKIM adds a digital signature to the email header, allowing the receiver to verify that the email was indeed sent and authorized by the owner of that domain. - DMARC (Domain-based Message Authentication, Reporting & Conformance): DMARC builds on SPF and DKIM by adding a way for domain owners to publish their email authentication practices and actions that should be taken if an email fails these checks.
2. Employee Training and Awareness - Regularly train employees to recognize phishing attempts and understand the importance of email security. Use simulated phishing campaigns to test and improve their awareness.
3. Email Filtering and Monitoring - Implement advanced email filtering solutions that use machine learning and heuristic analysis to identify and block phishing emails. Regularly monitor email traffic for unusual patterns that may indicate a phishing attack.
4. Secure Email Gateways - Use secure email gateways that provide an additional layer of protection by filtering out malicious emails before they reach the recipient’s inbox. These gateways can also offer features like URL protection and attachment scanning.