DuoCircle's Advanced Threat Defense Suite protects your business with real-time link scanning, phishing prevention, and intelligent spam filtering — so your employees stay safe even when they click.
DuoCircle's Advanced Threat Defense Suite layers multiple detection and prevention technologies to protect your organization from phishing, malware, and spam — without slowing down your team.
Every link in every email is checked against multiple URL reputation databases at the moment of click — not just at delivery. Even if a site turns malicious after the email arrives, your team is protected.
When an employee is about to visit a suspicious or malicious site, DuoCircle stops the visit and delivers an instant alert — turning a potential breach into a non-event.
Sophisticated inbound filtering keeps unwanted, deceptive, and malicious emails out of inboxes before they ever become a problem.
Every inbound message is scanned for malware attachments and embedded threats, adding a critical layer of defense beyond link protection.
Full email authentication tooling helps you validate senders and prevent spoofed emails from impersonating your domain or your trusted partners.
Ongoing visibility into your email security posture keeps you informed of threat trends and ensures legitimate messages continue to reach their destinations.
The 2025 Verizon Data Breach Investigation Report found that 60% of data breaches are caused by human error. Your users will click links. DuoCircle's Link Click Protection is built around that reality. Unlike solutions that only scan links at the time an email is delivered, DuoCircle re-checks every link every single time a user clicks — because threat actors routinely swap out safe content for malicious payloads after delivery. That means a link that looked clean this morning can still be caught and blocked this afternoon. Combined with phishing protection that intercepts suspicious site visits in real time and spam filtering that stops threats before they reach the inbox, DuoCircle creates a layered safety net that protects your people even on their worst days.
Businesses worldwide trust DuoCircle to secure their email communications and protect their employees from phishing and spam.
Link Click Protection re-evaluates URLs at the moment of each click — not just at email delivery — closing the window attackers depend on.
Are caused by human error according to the 2025 Verizon DBIR. DuoCircle is built to protect your team even when individual vigilance falls short.
Each clicked link is checked against multiple reputation databases simultaneously, maximizing detection accuracy and minimizing false negatives.
“DuoCircle is rated five stars by IT professionals and security teams on G2. Here is what real users say about Phish Protection by DuoCircle.”
Craig S. — G2 ⭐⭐⭐⭐⭐