Cybersecurity · head to head
Falco vs Microsoft Defender
Falco
Cybersecurity
CNCF-graduated runtime threat detection for Linux and Kubernetes using eBPF
- From
- Free
- Rated
- -
Microsoft Defender
Cybersecurity
Always-on protection for you and your family's data and devices
- From
- $12/month
- Rated
- -
The short version
- Only Falco has a free tier, so it costs nothing to try first.
- Each has a real cost: Falco falco detects and alerts but does not block; stopping an attack requires wiring up Falco Talon or your own response tooling, so out of the box a confirmed detection still means a human intervening after the fact.; Microsoft Defender defender Suite requires existing Microsoft 365 E3 or equivalent base licensing
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Falco and Microsoft Defender actually diverge.
| Attribute | Falco | Microsoft Defender |
|---|---|---|
| Starting price | Free | $12/month |
| Pricing model | Open source, no licence fee | subscription |
| Free tier | Yes | No |
| Platforms | Linux, Kubernetes, Self-hosted | Web |
Identical on both: user rating (Not yet rated), category (Cybersecurity).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Falco
- eBPF kernel instrumentation
- System call rules engine
- Container and Kubernetes context
- Default rule set
- Falcosidekick
- Falco Talon
- Plugins framework
- DaemonSet deployment
Only in Microsoft Defender
Nothing recorded that Falco does not also cover.
What people use each for
The jobs each tool is most often brought in to do.
Falco
- A platform team that needs to know when a shell is opened inside a production container, which image scanning cannot detect because it happens at runtimenot Microsoft Defender
- A regulated business required to evidence host and container intrusion detection on Kubernetes nodes for an auditnot Microsoft Defender
- A security team wanting a vendor-neutral detection layer whose rules they can read and modify rather than a black-box agentnot Microsoft Defender
- A cluster where a compromised dependency might write to sensitive paths or open unexpected outbound connections, and only kernel-level visibility will catch itnot Microsoft Defender
Microsoft Defender
- Endpoint security and threat protectionnot Falco
- Identity and access securitynot Falco
- Email threat protectionnot Falco
- SaaS application security monitoringnot Falco
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Falco
- Falco detects and alerts but does not block; stopping an attack requires wiring up Falco Talon or your own response tooling, so out of the box a confirmed detection still means a human intervening after the fact.
- The default rule set is noisy in real clusters and generates a large volume of benign matches from normal operational activity; without weeks of tuning, alert fatigue sets in and the team stops reading the feed, which is the usual failure mode.
- There is no storage, console, search or case management in the project, so a working detection capability means also running Falcosidekick, an event store, a dashboard and alert routing, all of which you build, host and maintain.
- The modern eBPF driver requires kernel 5.8 or later; older hosts fall back to the legacy probe or the kernel module, which brings driver-building against kernel headers and the operational fragility that comes with it on every kernel upgrade.
- Per-node syscall instrumentation carries measurable CPU overhead on busy hosts, and the cost scales with syscall volume rather than with cluster size, so the noisiest and most performance-sensitive workloads are exactly the ones that feel it most.
Microsoft Defender
- Defender Suite requires existing Microsoft 365 E3 or equivalent base licensing
- Some Defender products use pay-as-you-go pricing with variable costs
- Prices vary based on Microsoft agreements, requiring sales contact for custom quotes
Pricing, plan by plan
Falco
Free- Falco (open source)Free
- Apache 2.0 licence, CNCF graduated project
- eBPF and kernel module drivers
- Full rules engine and default rule set
Microsoft Defender
$12/month- Microsoft Defender Suite$12/month
- Endpoint protection
- Identity threat detection
- Email security
- Microsoft 365 E5 with Defender$60/month
- Includes Defender Suite
- Microsoft Teams included
- Comprehensive security and compliance
- Microsoft Defender Vulnerability Management Add-on$2/month
- Vulnerability scanning and management
- One-month free trial available
- Annual commitment required
Which should you pick?
Choose Falco if
- You need ebpf kernel instrumentation.
- You want to start without paying.
- You work on Linux, Kubernetes, Self-hosted.
- You also want system call rules engine.
Choose Microsoft Defender if
Nothing in the data separates Microsoft Defender from Falco on the points above - pick on price and on how each one feels to use.
Questions people ask
- Is Falco or Microsoft Defender better?
- Neither clearly leads. Falco starts at Free and Microsoft Defender at $12/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Falco or Microsoft Defender?
- Falco has a free tier; the other does not. Paid plans start at Free for Falco and $12/month for Microsoft Defender.
- Does Falco or Microsoft Defender run on more platforms?
- Falco runs on Linux, Kubernetes, Self-hosted. Microsoft Defender runs on Web.
- Can I use Falco for free?
- Yes. Falco has a free tier, so you can try it without paying. Microsoft Defender starts at $12/month.
- What is Falco best used for?
- Falco is most often used for a platform team that needs to know when a shell is opened inside a production container, which image scanning cannot detect because it happens at runtime, a regulated business required to evidence host and container intrusion detection on kubernetes nodes for an audit, a security team wanting a vendor-neutral detection layer whose rules they can read and modify rather than a black-box agent, a cluster where a compromised dependency might write to sensitive paths or open unexpected outbound connections, and only kernel-level visibility will catch it. Of those, a platform team that needs to know when a shell is opened inside a production container, which image scanning cannot detect because it happens at runtime and a regulated business required to evidence host and container intrusion detection on kubernetes nodes for an audit are not what Microsoft Defender is typically brought in for.
- What can Falco do that Microsoft Defender cannot?
- Falco covers eBPF kernel instrumentation, System call rules engine, Container and Kubernetes context, Default rule set.
Answered from the vendors’ own pages
Falco: Does Falco block attacks?
No. It detects and emits events. Response requires Falco Talon or your own automation on top.
Microsoft Defender: How much does Microsoft Defender Suite cost?
Microsoft Defender Suite costs $12/user/month (paid yearly), but requires existing Microsoft 365 E3 or equivalent base licensing. It includes endpoint protection, identity threat detection, email security, and SaaS application monitoring.
SourceFalco: Is Falco owned by Sysdig?
Sysdig created and open sourced it, but it graduated within the CNCF in February 2024, so governance sits with the foundation rather than the vendor.
Microsoft Defender: What add-ons are available for Microsoft Defender?
Microsoft Defender Vulnerability Management Add-on costs $2/user/month with annual commitment and includes a one-month free trial. Additional pay-as-you-go products include External Attack Surface Management, Cloud Security Posture Management, and Sentinel.
SourceFalco: What does it cost?
The project is Apache 2.0 with no licence fee. The cost is the storage, routing, tuning and staff time needed to make its output useful.
Microsoft Defender: Is Defender included in Microsoft 365 E5?
Yes, Microsoft Defender Suite is included in Microsoft 365 E5 at $60/user/month (paid yearly with Teams). Prices may vary based on Microsoft agreements, requiring contact with Sales for customized quotes.
SourceFalco: What kernel version do I need?
Kernel 5.8 or later for the default modern eBPF driver. Older hosts need the legacy eBPF probe or the kernel module.
Related pages
More on Microsoft Defender
Other head to heads
- Falco vs Snyk
- Falco vs Teleport
- Falco vs Darktrace
- Falco vs LogRhythm SIEM
- Falco vs Trend Micro Vision One
- Falco vs Cybereason Defense Platform
- Falco vs Splunk Enterprise Security
- Falco vs WireGuard
- Falco vs Bitwarden
- Falco vs Infisical
- Falco vs Semgrep
- Falco vs Trivy
- Falco vs One Identity
- Falco vs Ory Kratos
- Falco vs OWASP ZAP
- Falco vs Palo Alto Networks Prisma Cloud
- Falco vs Passbolt
- Falco vs Ping Identity
- Falco vs Bitdefender Total Security
- Falco vs Norton 360
- Falco vs 1Password
- Falco vs LastPass
- Falco vs McAfee Total Protection
- Falco vs Proofpoint
- Falco vs CrowdStrike Falcon
- Falco vs Avast One
- Falco vs ESET NOD32 Antivirus
- Falco vs Fortinet FortiGate
- Falco vs VMware Carbon Black
- Falco vs Wireshark
- Falco vs WorkOS
- Falco vs Zscaler Internet Access
- Falco vs Milestone XProtect
- Falco vs Osano
- Falco vs Bitdefender VPN
- Microsoft Defender vs Snyk
- Microsoft Defender vs Teleport
- Microsoft Defender vs Darktrace
- Microsoft Defender vs LogRhythm SIEM
- Microsoft Defender vs Trend Micro Vision One
- Microsoft Defender vs Cybereason Defense Platform
- Microsoft Defender vs Splunk Enterprise Security
- Microsoft Defender vs WireGuard
- Microsoft Defender vs Bitwarden
- Microsoft Defender vs Infisical
- Microsoft Defender vs Semgrep
- Microsoft Defender vs Trivy
- Microsoft Defender vs One Identity
- Microsoft Defender vs Ory Kratos
- Microsoft Defender vs OWASP ZAP
- Microsoft Defender vs Palo Alto Networks Prisma Cloud
- Microsoft Defender vs Passbolt
- Microsoft Defender vs Ping Identity
- Microsoft Defender vs Bitdefender Total Security
- Microsoft Defender vs Norton 360
- Microsoft Defender vs 1Password
- Microsoft Defender vs LastPass
- Microsoft Defender vs McAfee Total Protection
- Microsoft Defender vs Proofpoint
- Microsoft Defender vs CrowdStrike Falcon
- Microsoft Defender vs Avast One
- Microsoft Defender vs ESET NOD32 Antivirus
- Microsoft Defender vs Fortinet FortiGate
- Microsoft Defender vs VMware Carbon Black
- Microsoft Defender vs Wireshark
- Microsoft Defender vs WorkOS
- Microsoft Defender vs Zscaler Internet Access
- Microsoft Defender vs Milestone XProtect
- Microsoft Defender vs Osano
- Microsoft Defender vs Bitdefender VPN