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Cybersecurity · head to head

Falco vs Termly

Falco logo

Falco

Cybersecurity

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

From
Free
Rated
-
Full reviewWebsite
Termly logo

Termly

Cybersecurity

Legal policy generator and cookie consent banner for small websites

From
Free
Rated
-
Full reviewWebsite

The short version

  • 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.; Termly a standard plan licenses one website, so an agency or a business with several brand domains multiplies the headline price by the number of sites and the cheap option stops being cheap at four or five domains.
  • They diverge on capability: Falco covers eBPF kernel instrumentation, Termly covers Policy generator.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Falco and Termly actually diverge.

Attributes where Falco and Termly differ
AttributeFalcoTermly
Pricing modelOpen source, no licence feePer website per month
PlatformsLinux, Kubernetes, Self-hostedWeb

Identical on both: starting price (Free), free tier (Yes), 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 Termly

  • Policy generator
  • Automatic policy updates
  • Consent banner
  • Script auto blocker
  • Cookie scanner
  • Consent log
  • WordPress plugin
  • Do not sell handling

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 Termly
  • A regulated business required to evidence host and container intrusion detection on Kubernetes nodes for an auditnot Termly
  • A security team wanting a vendor-neutral detection layer whose rules they can read and modify rather than a black-box agentnot Termly
  • A cluster where a compromised dependency might write to sensitive paths or open unexpected outbound connections, and only kernel-level visibility will catch itnot Termly

Termly

  • A small e-commerce shop that needs a privacy policy, terms and a compliant cookie banner before launch without engaging a solicitornot Falco
  • A freelance web developer standardising the legal and consent layer across client sites, buying a licence per site or an agency arrangementnot Falco
  • A WordPress site owner who needs scripts blocked before consent and does not have a tag manager set upnot Falco
  • A US small business newly in scope for a state privacy law that needs a do not sell opt-out on the site quicklynot 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.

Termly

  • A standard plan licenses one website, so an agency or a business with several brand domains multiplies the headline price by the number of sites and the cheap option stops being cheap at four or five domains.
  • Generated policies are templates conditioned on questionnaire answers, so they describe the data practices you claimed rather than the ones your code performs, and a regulator comparing the policy to actual tracking finds the gap not the vendor.
  • Banner view limits apply on the lower tiers, and a site that spikes in traffic can exhaust its allowance mid month, which is the worst possible moment for consent handling to degrade.
  • It covers websites well but has little for mobile apps, so a company with an iOS and Android app alongside its site needs a second consent mechanism and a second consent record.
  • There is no data mapping, subject rights automation or vendor inventory, so any company that grows into real privacy programme obligations outgrows Termly entirely rather than upgrading within it.

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

Termly

Free
  • FreeFree
    • 1 basic legal policy
    • 10,000 monthly banner views
    • Cookie consent banner
  • Starter$10/month
    • 2 legal policies
    • 10 policy edits
    • 50,000 monthly banner views
  • Pro Plus$15/month
    • Unlimited banner views
    • Additional legal policies
    • Multilingual banners

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 Termly if

  • You need policy generator.
  • You want to start without paying.
  • You also want automatic policy updates.
Termly review

Questions people ask

Is Falco or Termly better?
Neither clearly leads. Falco starts at Free and Termly at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Falco or Termly?
Falco starts at Free and Termly at Free.
Does Falco or Termly run on more platforms?
Falco runs on Linux, Kubernetes, Self-hosted. Termly runs on Web.
Can I use Falco for free?
Both have a free tier, so you can try either at no cost before committing.
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 Termly is typically brought in for.
What can Falco do that Termly cannot?
Falco covers eBPF kernel instrumentation, System call rules engine, Container and Kubernetes context, Default rule set. Termly covers Policy generator, Automatic policy updates, Consent banner, Script auto blocker.

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.

Termly: Does one Termly plan cover all my websites?

No. A standard plan licenses one website. Multiple domains need multiple licences or an agency arrangement, and this is the single most common surprise on the bill.

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.

Termly: Are the generated policies legally sufficient?

They are templates conditioned on your answers and are not legal advice. They are proportionate for a simple site and inadequate where actual data flows are complex or regulated.

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.

Termly: Is there a genuinely free plan?

Yes, one basic policy, one site, 10,000 monthly banner views and quarterly cookie scans, with no card required.

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.

Termly: Does it handle US state privacy opt-outs?

Yes, including a do not sell or share mechanism and regional rule sets, alongside GDPR consent for EU visitors.

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