Best Microsoft Defender for Office 365 Alternatives in 2026
Taken from Cloud Detection and Response Software, where Microsoft Defender for Office 365 is listed too, in the same order.
- 1
7.8 Club scoreOligo Security
Oligo Security provides runtime security for applications, cloud workloads, and AI systems.
- Free plan
- Linux · Web · API · Self-hosted
- 2
7.6 Club scoreSysdig Secure
Sysdig Secure is a cloud-native application protection platform for cloud services, containers, Kubernetes, hosts and serverless environments.
- Windows · macOS · Linux · Web
- 3
7.4 Club scoreAmazon GuardDuty
Amazon GuardDuty monitors AWS accounts and workloads for malicious activity and produces security findings for response.
- Free trial
- Linux · Web · API
- 4
7.1 Club scoreARMO Platform
ARMO Platform is a cloud security platform centered on Kubernetes and runtime data, available through the web or self-hosted deployment.
- Free plan
- Web · Self-hosted
- 5 6.9 Club score
SentinelOne Singularity Cloud Security
SentinelOne Singularity Cloud Security brings cloud posture, workload, identity, data, and AI security into one platform.
- Web · iPhone and iPad · Android · API
- 6
6.6 Club scoreTenable One Cloud Security
Tenable One Cloud Security, described as Tenable One Cloud Exposure, is a web-based CNAPP for finding and reducing risk across multi-cloud and hybrid environments.
- Web
- 7
6.4 Club scoreDarktrace / EMAIL
Darktrace / EMAIL is a cloud email-security product that uses behavioral AI to identify and stop phishing, business email compromise, impersonation and social…
- Web · API
- 8
6.4 Club scorePalo Alto Networks Cortex Cloud API Security
Palo Alto Networks Cortex Cloud API Security discovers, prioritizes, and protects APIs across cloud environments.
- Linux · Web · API
- 9
6.4 Club scoreSweet Security
Sweet Security is a runtime CNAPP and AI security platform for cloud applications, workloads, infrastructure, and AI agents.
- Linux · Web · Self-hosted
- 10
6.2 Club scoreWiz Defend
Wiz Defend provides real-time threat detection, investigation, and response across cloud environments, including AI applications.
- Web
- 11
5.8 Club scoreFortiCNAPP
FortiCNAPP is a cloud security product for protecting container, serverless, and Kubernetes workloads.
- Windows · Linux · Web
- 12
5.6 Club scoreAqua Security
Aqua Security provides software for securing development workflows, cloud workloads, containers, and Kubernetes environments.
- Linux · Web
- 13 5.4 Club score
Cortex Cloud
Cortex Cloud is a web-based security offering with hybrid deployment and hybrid cloud coverage.
- Web
- 14
5.4 Club scoreCarbon Black Workload
- Windows · Linux · Web
- 15 5.1 Club score
SUSE NeuVector
SUSE NeuVector is an open-source Kubernetes security product with a free pricing model and self-hosted deployment.
- Web
- 16 5.0 Club score
Sophos Cloud Workload Protection
Sophos Cloud Workload Protection is a web-accessible service for protecting cloud workloads in hybrid deployments.
- Web
- 17
5.0 Club scoreUpwind Cloud Detection and Response
Upwind Cloud Detection and Response is a web-based security product for monitoring activity across multiple cloud environments.
- Web