Inbox Security for Office 365
Cyren protects 1.3 billion users against emerging threats













Protect Office 365 users against sophisticated phishing threats. Cyren Inbox Security continuously monitors Office 365 inboxes and automatically remediates advanced email phishing attacks that evade SEGs.

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Continuously search for evasive email threats
Unlike the one-time pass done by SEGs, Cyren leverages Office 365’s native API integration to continuously look for threats – helping to protect you from evasive phishing attacks. Cyren Inbox Security:
- Rescans inbound, outbound and delivered emails in all folders
- Analyzes URLs and web pages in real time
- Looks for anomalies and threat indicators in email sender/recipient behavior
Counter sophisticated phishing threats
Powerful, automated remediation tools identify, mitigate, and protect your enterprise from attacks that evade the SEG’s perimeter defenses:
- Phishing attacks using delayed URL activation, URLs hidden in attachments, HTML obfuscation, sophisticated encryption, and real and valid SSL certificates
- Spear phishing and spoofed messages that carry no payload to detect
- BEC, CEO fraud, and other targeted social engineering attacks
- New zero-day email phishing campaigns
- Account takeovers and monitoring of internal email

Threats for Office 365

Best Practices for Dealing with Cyber Threats
Eliminate the burden on SOC teams to investigate and remediate phishing threats
When phishing attacks break through, Cyren:
- Investigates phishing incidents and triggers similarity searches
- Consolidates similar events into a single case, reducing alert fatigue
- “Claws back” suspicious messages from all impacted inboxes
- Leverages policy-based response frameworks to take further automated remediation actions
- Auto-recovers false positives
Cyren automatically remediates 97% of phishing attacks on average.
Users can scan suspicious emails with the click of a button
Cyren’s seamless Office 365 mailbox plugin lets users scan and report suspicious emails in real-time.


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Identify and remediate existing phishing threats hidden in your users’ inboxes
Upon installation, Cyren automatically conducts an historical scan of all email folders to eradicate hidden phishing threats lurking in user inboxes.
Live phishing protection in 5 clicks
It takes just 5 clicks to onboard your Office 365 environment.
- Transparent to ATP and email gateways
- Intuitive administration, easy to use
- Simple integration with SIEM and SOAR
“Cyren is such an easy solution. At a moment’s notice I can have it deployed.”

Read reviews on Gartner Peer Insights >

Learn about Cyren’s Incident Response Service >
24/7 email threat response service
Eliminate the time your security team spends investigating suspicious emails with Cyren’s Incident Response Service. Our experts operate around the clock, every day, and every holiday to relieve the SOC team from time consuming and stressful threat investigation and response.
“Cyren’s IR team has shifted a huge burden from our shoulders to theirs.”


Phishing attack protection for Office 365 accounts
This guide takes a deep dive into corporate email security to explain why Office 365 remains highly vulnerable to phishing threats.