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Advanced Email Security Protection for Office 365

Threat actors target Office 365 infrastructure with identity deception.

Microsoft Office 365 is the dominant choice for large organizations using or considering cloud-based email. While the move to Office 365 reduces operations and management overhead and provides a compelling user experience, it raises serious security challenges. If you’re making the move to the cloud and Office 365, you need to augment your email security to address today’s most damaging threats.

Office 365 Security Is No Match for Identity Deception

Office 365 includes Exchange Online Protection (EOP) for basic email security, focusing on spam and virus detection. At an additional cost, you can add Advanced Threat Protection (ATP). Like virtually all other gateway solutions, these controls attempt to stop attacks by looking for malicious content, attachments, URLs, and evidence of bad behavior. However, attackers can easily evade these protections by impersonating trusted individuals, partners or brands and avoiding the use of malicious content. These attacks are bypassing EOP and ATP, as well as next generation approaches that examine content.

Office 365
EOP is perfect for:
  • New and existing spam attacks
  • Malware/malicious attachments
  • URL-based phishing
EOP cannot stop:
  • Low-volume, targeted email attacks
  • Zero-day attacks with no existing signatures
  • Social engineering-based attacks with no malicious content
  • Business email compromise and spear phishing attacks that use identity deception

A View From the Trenches

Customer: Leading provider of cloud solutions
Environment: Microsoft Office 365 with EOP
Attacker goal: To obtain credentials for organization’s AWS account
Tactic: Carefully crafted email with no malicious content targeting AWS admin

Caught by EOP? No
Caught by Office 365 custom rules? No
Caught by Agari Trust Analytics: Yes

Office 365

Fortify Office 365 With Trust-based Security Which Attackers Can’t Evade

Other approaches rely on trying to predict or detect bad behavior or malicious content. This works if attackers don’t evolve and innovate. Only Agari creates a model of trusted email by analyzing your organization’s inbound email and correlating it with billions of emails every day from the world’s largest email providers, including Google, Microsoft and Yahoo. Then, that trust model is used to categorize and prevent attacks using identity deception from reaching your employees’ inboxes.

Office 365 + Agari: An Unbeatable Combination

Office 365
  • Cloud-native architecture for seamless integration with Office 365
  • Eliminates need for custom Office 365 filters or broad quarantine rules
  • Stops sophisticated email attacks that evade email content filters

Filling in the Gaps in Office 365: How to Maximize Security & Minimize TOC

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