Cybersecurity · head to head
Falco vs Splunk Enterprise Security
Falco
Cybersecurity
CNCF-graduated runtime threat detection for Linux and Kubernetes using eBPF
- From
- Free
- Rated
- -
Splunk Enterprise Security
Cybersecurity
The platform for operational intelligence
- From
- On request
- 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.; Splunk Enterprise Security splunk Enterprise Security is licensed separately from the Splunk platform, so a SIEM deployment needs both
- They diverge on capability: Falco covers eBPF kernel instrumentation, Splunk Enterprise Security covers Security monitoring.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Falco and Splunk Enterprise Security actually diverge.
| Attribute | Falco | Splunk Enterprise Security |
|---|---|---|
| Starting price | Free | On request |
| Pricing model | Open source, no licence fee | subscription |
| Free tier | Yes | No |
| Platforms | Linux, Kubernetes, Self-hosted | Web, Api |
| Founded | Unknown | 2003 |
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 Splunk Enterprise Security
- Security monitoring
- Incident review
- Risk-based alerting
- Threat intelligence
- Investigation workbench
- MITRE ATT&CK mapping
- Automated response
- Compliance reporting
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 Splunk Enterprise Security
- A regulated business required to evidence host and container intrusion detection on Kubernetes nodes for an auditnot Splunk Enterprise Security
- A security team wanting a vendor-neutral detection layer whose rules they can read and modify rather than a black-box agentnot Splunk Enterprise Security
- A cluster where a compromised dependency might write to sensitive paths or open unexpected outbound connections, and only kernel-level visibility will catch itnot Splunk Enterprise Security
Splunk Enterprise Security
- Running a security operations centre on Splunk indexed log datanot Falco
- Correlation searches, risk based alerting and incident investigationnot Falco
- Compliance reporting from pooled security telemetrynot 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.
Splunk Enterprise Security
- Splunk Enterprise Security is licensed separately from the Splunk platform, so a SIEM deployment needs both
- Splunk publishes no rate for Enterprise Security and directs buyers to contact a pricing expert
- UEBA, SOAR and automated threat analysis require the Premier edition rather than Essentials
- The platform underneath can be billed by ingest volume, workload or activity, so the total cost depends on a pricing model chosen at contract time rather than a list price
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
Splunk Enterprise Security
On request- Workload PricingFree
- Pay per compute
- Flexible scaling
- All features
- Ingest PricingFree
- Pay per GB ingested
- Predictable costs
- All features
- Entity PricingFree
- Pay per monitored entity
- Security focused
- All features
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 Splunk Enterprise Security if
- You need security monitoring.
- You work on Web, Api.
- You also want incident review.
Questions people ask
- Is Falco or Splunk Enterprise Security better?
- Neither clearly leads. Falco starts at Free and Splunk Enterprise Security at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Falco or Splunk Enterprise Security?
- Falco has a free tier; the other does not. Paid plans start at Free for Falco and On request for Splunk Enterprise Security.
- Does Falco or Splunk Enterprise Security run on more platforms?
- Falco runs on Linux, Kubernetes, Self-hosted. Splunk Enterprise Security runs on Web, Api.
- Can I use Falco for free?
- Yes. Falco has a free tier, so you can try it without paying. Splunk Enterprise Security starts at On request.
- 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 Splunk Enterprise Security is typically brought in for.
- What can Falco do that Splunk Enterprise Security cannot?
- Falco covers eBPF kernel instrumentation, System call rules engine, Container and Kubernetes context, Default rule set. Splunk Enterprise Security covers Security monitoring, Incident review, Risk-based alerting, Threat intelligence.
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.
Splunk Enterprise Security: How much does Splunk Enterprise Security cost?
Splunk Enterprise Security pricing is not published. The product is available in Essentials Edition with threat detection, investigation, and response capabilities, and Premier Edition with UEBA, SOAR, and Automated Threat Analysis. Customers must contact Splunk sales for pricing quotes on either edition.
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.
Splunk Enterprise Security: What editions of Splunk Enterprise Security are available?
Splunk Enterprise Security offers Essentials Edition with threat detection, investigation, and response capabilities, and Premier Edition which adds UEBA (User and Entity Behavior Analytics), SOAR (Security Orchestration, Automation and Response), and Automated Threat Analysis.
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.
Falco: 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 Splunk Enterprise Security
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