--- title: "Superior Email Security is the Key to Stopping Ransomware | DuoCircle" description: "The number of ransomware attacks is increasing worldwide, which forces corporate IT teams to come up with innovative solutions to combat the threat." image: "https://www.duocircle.com/images/og-default.png" canonical: "https://www.duocircle.com/blog/email-security/superior-email-security-is-the-key-to-stopping-ransomware/" --- Quick Answer Ransomware almost always arrives by email: a malicious attachment or a link to a weaponized download. Once on one machine, it walks shared network drives and encrypts everything it can reach, often within minutes. On-premises detection is too slow because the file is usually inside the perimeter before it triggers alarms. The most effective control is keeping the delivery email out of the inbox. DuoCircle Advanced Threat Defense scans every inbound message in the cloud, detects malicious URLs and weaponized attachments before delivery, and blocks the message rather than relying on user judgment. Other features in the suite: spam filtering with a sub-0.01 percent false positive rate, domain spoofing protection, real-time activity logs and click reporting, Smart Adaptive Quarantine, 30-day MX backup, and 24/7 support. Share [ ](https://www.linkedin.com/sharing/share-offsite/?url=undefined%2Fblog%2Femail-security%2Fsuperior-email-security-is-the-key-to-stopping-ransomware%2F "Share on LinkedIn") [ ](https://twitter.com/intent/tweet?text=Superior%20Email%20Security%20is%20the%20Key%20to%20Stopping%20Ransomware&url=undefined%2Fblog%2Femail-security%2Fsuperior-email-security-is-the-key-to-stopping-ransomware%2F "Share on X/Twitter") [ ](https://www.facebook.com/sharer/sharer.php?u=undefined%2Fblog%2Femail-security%2Fsuperior-email-security-is-the-key-to-stopping-ransomware%2F "Share on Facebook") [ ](https://reddit.com/submit?url=undefined%2Fblog%2Femail-security%2Fsuperior-email-security-is-the-key-to-stopping-ransomware%2F&title=Superior%20Email%20Security%20is%20the%20Key%20to%20Stopping%20Ransomware "Share on Reddit") [ ](mailto:?subject=Superior%20Email%20Security%20is%20the%20Key%20to%20Stopping%20Ransomware&body=Check out this article: undefined%2Fblog%2Femail-security%2Fsuperior-email-security-is-the-key-to-stopping-ransomware%2F "Share via Email") ![dmarc report](https://media.mailhop.org/duocircle/images/2018/08/dmarc-report-4923.jpg) _The number of ransomware attacks is increasing worldwide, which forces corporate IT teams to come up with innovative solutions to combat the threat._ But email based threats like ransomware are costly and difficult to fight with on-site solutions alone. With an on-site solution, by the time the existence of ransomware is known, the **threat is already wreaking havoc** across the network. Once ransomware gains access to a company’s systems, it’s too late. In the best cases, only a few isolated computers are held hostage. But if shared network drives are present, the ransomware can propagate **across entire corporate networks**, quickly bringing the organization to its knees. The good news is that relatively simple email security solutions can be found to combat the threat of ransomware. Since ransomware is nearly always initiated via email, adopting a strategy that block malicious URLs and weaponized attachments is the single most effective means of defense in the **fight against ransomware**. _DuoCircle’s Advanced Threat Defense is an effective low cost solution for organizations seeking to defend against email based threats._ [![ransomware](https://media.mailhop.org/duocircle/images/2018/08/dmarc-report-service-3951.jpg)](https://media.mailhop.org/duocircle/images/2018/08/dmarc-report-service-3951.jpg) **Advanced Threat Defense: Effective Protection Against Email-Borne Threats** Email-borne attacks include ransomware, phishing, malware, spam, and more, and they are becoming more common and more sophisticated every day. DuoCircle’s **Advanced Threat Defense** brings together all the tools your organization needs into one integrated solution to protect and defend your employees from these threats. Using an **intelligent classification engine**, Advanced Threat Defense detects these threats in real-time and defends against them with the highest possible level of accuracy. With [Advanced Threat Defense](/advanced-threat-defense/) from DuoCircle, ransomware attacks are detected and defeated. Every incoming and archived email is scanned, and suspicious attachments are identified using advanced threat detection. Advanced Threat Defense offers end to end email protection service against threats, including the ever-increasing threat of ransomware. _DuoCircle’s Advanced Threat Defense is a multi-layered approach to email threat protection that pulls all the features you need together in a single integrated solution to fight malware, ransomware, and phishing attacks._ [![cloud-based email security services](https://media.mailhop.org/duocircle/images/2018/08/dmarc-reporting-service-8705.jpg)](https://media.mailhop.org/duocircle/images/2018/08/dmarc-reporting-service-8705.jpg) **Reliable Threat Protection From DuoCircle** DuoCircle is an industry-leading provider of secure cloud-based email security services. As an additional level of front-line protection, DuoCircle also offers the Advanced Threat Defense Suite. This powerful suite of tools and systems offers **end to end protection against threats**, including the ever-increasing threat of ransomware. **Advanced Threat Defense from DuoCircle provides:** - Protection from malware and zero-day attacks, with 100% availability. - Spam protection that eliminates 99% of all incoming spam with a false positive rate of less than one in ten thousand. - Unlimited users and unlimited inbound message volume - Protection against domain name spoofing - Blocking of malicious attachments. - Real-time activity logs, with access to the email queue and click reporting - **Smart Adaptive Quarantine**, which puts the burden of sorting spam messages on the sender rather than the recipient. - **A thirty day backup queue**, 30 days of [MX backup](/email/email-backup-mx/) service included - Chat, email and phone support is available 24/7 ![Brad Slavin](https://media.mailhop.org/dmarcreport/images/team/brad-slavin.jpg) Brad Slavin General Manager General Manager at DuoCircle. Product strategy and commercial lead across the email security portfolio. ## Secure your email infrastructure Protect, authenticate, and deliver. Contact our team to find the right solution. [Contact Sales](/contact/) [Explore Products](/products/) ## Related Articles [ Email Security 8m BIMI in 2026: What the Certificate Authority Does, and What Your DMARC Tool Does May 5, 2026 ](/blog/bimi-2026-what-the-ca-does-what-your-dmarc-tool-does/)[ Email Security 8m Designing A Custom Dkim Architecture For High-Volume Email Senders Apr 28, 2026 ](/blog/designing-custom-dkim-architecture-for-high-volume-email-senders/)[ Email Security 12m DMARC, SPF, and DKIM in 2026: Why Email Authentication Is Now a Regulatory Requirement, Not Just a Best Practice Apr 29, 2026 ](/blog/dmarc-spf-dkim-2026-email-authentication-regulatory-requirement-best-practice/)[ Email Security 5m Email Monitoring Tools: A Complete Guide to Protecting Your Email Ecosystem May 7, 2026 ](/blog/email-monitoring-tools-guide-protecting-your-email-ecosystem-security/) ```json {"@context":"https://schema.org","@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. 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