Laptop depicting dashboard UI for secure email software

Cisco Secure Email Threat Defense

Advanced protection to safeguard your inboxes

Email is still the No. 1 threat vector. Expand the scope of your defenses to detect dangerous threats and rapidly respond to and remediate new threats in real time.

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Comprehensive defense for the most damaging threats

Expansive email security protects your employees and organization, while empowering your security response.

Harness advanced threat analysis

Identify the malicious techniques used in attacks targeting your organization. Understand the specific business risks and categorize threats to gain insight into the parts of your organization that are most vulnerable to attack.

Gain deeper threat insight and context

AI-driven threat detection uses multiple detection engines to simultaneously evaluate different portions of an incoming email. These verdict details help ensure accurate threat classification, identify business risk, and promote an appropriate response action.

Optimize your defenses

Threats come from numerous sources: phishing, business email compromise, malware, and ransomware. Defend against all of them with industry-leading threat intelligence that empowers you to act quickly.

Remediate faster

Using rapid message remediation directly in Email Threat Defense or through Cisco XDR empowers your team to act quickly and easily to help ensure maximum threat protection.

Screenshot of Secure Email Threat Defense UI

See advanced threat features of Email Threat Defense

Take a look at the way that the strategic uses of AI empower Secure Email Threat Defense to identify the intent and risk that an email-based threat poses to an organization.

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Better together

SecureX threat detection and remediation

Cisco Vulnerability Management (formerly Kenna Security)

Risk-based prioritization that predicts exploits, drives down risk, and optimizes resources.

Advanced security for cloud email

Cisco XDR

Detect the most sophisticated threats sooner across all vectors and prioritize by impact for faster responses.

Awareness training for safer, smarter choices

Cisco Secure Endpoint

Stop threats—before they cause compromise—with powerful detection and response capabilities.

Licensing made easy


Pricing for Secure Email Threat Defense is on a per-user basis, which means it applies to a single-knowledge worker.


All subscriptions have flexible options,​ including 1-, 3-, and 5-year terms with significant savings on multiyear options​. There is no extra charge for scheduled billing (monthly, quarterly, yearly, or full payment)​.


All subscriptions can be included in larger Cisco buying programs (Security Bundles, Enterprise Agreements) and can engage Cisco Capital for financing options. 


All subscriptions include Cisco Technical Assistance Center (TAC) support (24/7) and customer success for onboarding assistance.

Featured resources

Powerful features for maximum protection

Exciting innovations in Secure Email Threat Defense include advanced threat features and ties to Extended Detection and Response (XDR).

Recognized as a market leader

Take a look at the many ways Cisco Secure Email Threat Defense distinguished itself from competitors in the KuppingerCole Leadership Compass.

Using AI to drive better threat detection

See how AI and Large Language Models drive the enhanced protection that Secure Email Threat Defense provides against advanced email threats.

Company of the Year award

Frost & Sullivan designates this honor to companies demonstrating outstanding achievement and superior performance.

Get three vital protections in a single step

You don't have to trade security for productivity. The Cisco Security Step-Up promotion deploys three powerful lines of defense that are simple, secure, and resilient for your business. Defend every critical attack vector–email, web traffic, and user credentials–in one easy step.