Cloud security

Preventive protection for cloud-based applications such as email and storage. A powerful combination of spam filtering, anti‑malware scanning and cloud sandboxing capabilities 

ESET Cloud Office Security

Advanced protection for Microsoft 365 apps, with ultimate zero-day threat defense.

Cloud security

Preventive protection for cloud-based applications such as email and storage. A powerful combination of spam filtering, anti‑malware scanning and anti‑phishing capabilities.

ESET Cloud Office Security

Advanced protection for Microsoft 365 applications


Why do customers appreciate our cloud security solution?

Secured cloud applications

Equip your Microsoft 365 Exchange Online and OneDrive with another layer of protection featuring proven award-winning technology.

Business continuity

Helps eliminate unsolicited emails and targeted attacks, allowing employees to focus on their job and ensure business continuity.

Cloud-based console and automation

Get immediately notified about new detections directly in a dedicated console or via alerts. New users are protected automatically.

Common use cases

Worried about

Risk mitigation?

A company owner wants to apply specific measures to minimize cybersecurity risks and maintain business continuity.

Worried about

Stored data in cloud?

There are frequent exchanges of large files on company cloud storage between internal and external people.

Worried about

Ransomware, unknown or questionable files?

Ransomware tends to enter unsuspecting users' mailboxes through email.

What makes our solution a perfect fit for your needs?

Cloud security

ESET Cloud Office Security

Provides advanced preventive protection for Microsoft 365 applications against malware, spam and phishing attacks with ultimate Zero-day threat defense and an easy-to-use cloud management console. 

  • Anti-spam
  • Anti-Phishing


  • Cloud Sandbox 
  • Cloud-based console
30-days free trial, no commitment

Explore ESET Cloud Office Security features


Now using an enhanced, award-winning engine with improved performance, this essential component filters all spam emails and keeps user mailboxes free of unsolicited or undesired messages.


Scans all incoming emails and attachments as well as all new and changed files. This helps keep the user’s mailbox free of malware and prevents the spread of malware through cloud storage across multiple devices.


Prevents users from accessing web pages that are known to be phishing sites. Email messages can contain links that lead to phishing web pages.

Cloud sandbox analysis 

Proactive threat defense against new, never before-seen type of threats. Utilizes advanced adaptive scanning, cutting-edge machine learning, cloud sandboxing and in-depth behavioral analysis. 

Automatic protection

With this option enabled, admins can be sure that new users created within the Microsoft 365 tenant will be automatically protected without the need to go to the console to add them separately.

Quarantine manager

An admin can inspect objects in this storage section and decide to delete or release them. This feature offers simple management of emails and files that have been quarantined by our security product.

System requirements and license information

Supported browsers

  • Mozilla Firefox
  • Microsoft Edge
  • Google Chrome
  • Opera
  • Safari

Note: For the best experience with ESET Cloud Office Security, we reccomend that you keep your web browsers up to date 

The following are required to start your Microsoft 365 protection

  • Supported Microsoft 365 subscription plan
  • Admin access to Azure Active Directory (Azure AD)
  • Azure Cloud Services - Exchange | One Drive | Sharepoint | Teams
  • An account in ESET Business Account or ESET MSP Administrator Portal

Committed to the highest industry standards

Respected by industry analysts

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AV Comparatives Real World Protection JUN 2020

Awarded in independent tests

See test results

ESET PROTECT Advanced is a leader in Small-Business for Endpoint Protection Suites on G2

Appreciated by customers worldwide

Read full reviews

Purchase your cloud security solution today

ESET's cloud security is available in the following solutions

Secured cloud applications and multilayered endpoint protection.

Cloud security

All included components:
  • Cloud-based Console
  • Endpoint Protection
  • File Server Security
  • Full Disk Encryption
  • Cloud Sandbox
  • Cloud App Protection

Advanced preventive protection for cloud email and storage.

Cloud security

  • Anti-spam
  • Anti-phishing
  • Anti-malware
  • Cloud Sandbox
  • Cloud-based console