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Email Security Best Practices 2025

March 10, 20255 min read

With over 90% of breaches still originating from email, implementing robust security measures is essential for every organization in 2025.

Top Email Threats in 2025

AI-Powered Phishing

Highly personalized attacks using AI to mimic trusted colleagues and vendors.

Business Email Compromise

Sophisticated attacks targeting executives with fraudulent payment requests.

Account Takeover

Compromising legitimate accounts to launch attacks from trusted sources.

Supply Chain Attacks

Leveraging trusted vendor relationships to infiltrate your systems.

6 Critical Security Practices

1

Advanced Authentication

Implement FIDO2-compliant passwordless authentication and contextual access policies that verify identity based on behavior patterns.

2

Email Authentication Stack

Deploy all three critical protocols to prevent domain spoofing:

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3

AI-Powered Email Security

Deploy solutions with behavioral AI that detects anomalies in communication patterns and identifies social engineering attempts even in text-only emails.

4

Zero Trust Email

Treat all email content as potentially malicious with link isolation, attachment sandboxing, and real-time URL scanning.

5

Continuous Training

Implement adaptive security awareness training with real-world simulations tailored to each employee's risk profile.

6

Integrated Security Ecosystem

Connect email security with your broader security stack for coordinated threat response across endpoints, identity, and cloud services.

Email Security Trends for 2025

Autonomous Security: AI systems that not only detect but automatically remediate threats without human intervention.

Quantum-Resistant Encryption: New email security protocols designed to withstand quantum computing attacks.

Integrated Identity Context: Security systems that evaluate email risk based on sender behavior across all digital channels.

Ready to Secure Your Email in 2025?

Our team of security experts can help you implement these practices and stay ahead of emerging threats.