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Cybersecurity · head to head

Falco vs MetricStream

Falco logo

Falco

Cybersecurity

CNCF-graduated runtime threat detection for Linux and Kubernetes using eBPF

From
Free
Rated
-
Full reviewWebsite
MetricStream logo

MetricStream

Cybersecurity

Enterprise GRC suite for large regulated organisations, with implementation costs that exceed the licence

From
On request
Rated
-
Full reviewWebsite

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.; MetricStream implementation typically costs one and a half to two and a half times the first year licence, so a one million dollar licence carries a one and a half to two and a half million dollar rollout that rarely appears in the initial business case.
  • They diverge on capability: Falco covers eBPF kernel instrumentation, MetricStream covers Enterprise and operational risk.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Falco and MetricStream actually diverge.

Attributes where Falco and MetricStream differ
AttributeFalcoMetricStream
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsLinux, Kubernetes, Self-hostedWeb

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 MetricStream

  • Enterprise and operational risk
  • Regulatory compliance
  • Internal audit
  • Third-party risk
  • Cyber risk quantification
  • Policy and case management
  • Content libraries
  • ESG 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 MetricStream
  • A regulated business required to evidence host and container intrusion detection on Kubernetes nodes for an auditnot MetricStream
  • A security team wanting a vendor-neutral detection layer whose rules they can read and modify rather than a black-box agentnot MetricStream
  • A cluster where a compromised dependency might write to sensitive paths or open unexpected outbound connections, and only kernel-level visibility will catch itnot MetricStream

MetricStream

  • A multinational bank mapping one control set against obligations from several regulators and needing to evidence the mapping to examinersnot Falco
  • An insurer consolidating separate risk, audit and vendor systems that currently produce contradictory numbers to the boardnot Falco
  • A pharmaceutical company that must track regulatory change across jurisdictions and show what each change affectednot Falco
  • An organisation whose three lines of defence must share one risk taxonomy rather than three overlapping spreadsheetsnot 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.

MetricStream

  • Implementation typically costs one and a half to two and a half times the first year licence, so a one million dollar licence carries a one and a half to two and a half million dollar rollout that rarely appears in the initial business case.
  • Full deployment takes six to eighteen months, during which the organisation runs old and new processes in parallel and the promised efficiency gain is negative.
  • Per-user pricing in the low thousands per year per seat discourages giving access to the first line of defence, which is precisely where risk data originates, so many deployments end up with data still arriving by spreadsheet.
  • Configuration flexibility comes at the price of specialist skills, and organisations become dependent on MetricStream partners or a small internal team, making later changes slow and expensive.
  • The interface and workflow feel enterprise-heavy next to modern compliance tools, and infrequent business users find it hard, which suppresses the participation the platform is meant to enable.

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

MetricStream

On request
  • MetricStream GRC$undefined/year
    • Enterprise risk, audit, compliance and third-party modules
    • Regulatory content libraries
    • Multi-entity and multi-jurisdiction support

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.
Falco review

Choose MetricStream if

  • You need enterprise and operational risk.
  • You also want regulatory compliance.
MetricStream review

Questions people ask

Is Falco or MetricStream better?
Neither clearly leads. Falco starts at Free and MetricStream at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Falco or MetricStream?
Falco has a free tier; the other does not. Paid plans start at Free for Falco and On request for MetricStream.
Does Falco or MetricStream run on more platforms?
Falco runs on Linux, Kubernetes, Self-hosted. MetricStream runs on Web.
Can I use Falco for free?
Yes. Falco has a free tier, so you can try it without paying. MetricStream 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 MetricStream is typically brought in for.
What can Falco do that MetricStream cannot?
Falco covers eBPF kernel instrumentation, System call rules engine, Container and Kubernetes context, Default rule set. MetricStream covers Enterprise and operational risk, Regulatory compliance, Internal audit, Third-party risk.

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.

MetricStream: What does MetricStream cost?

It is quoted. Market data suggests roughly 75,000 to 150,000 US dollars a year for small enterprise deployments, 250,000 to 500,000 for medium and 750,000 upwards for large.

Falco: 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.

MetricStream: How long is implementation?

Six to eighteen months for a full platform deployment, and the services cost usually exceeds the first year licence.

Falco: 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.

MetricStream: Is it right for a mid-market company?

Usually not. Its depth suits organisations with several regulators and formal three lines of defence structures.

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.

MetricStream: Does it replace SOC 2 automation tools?

It can cover the framework, but it is not designed for the automated evidence collection those tools do cheaply.

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