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Cybersecurity · head to head

Darktrace vs Sigstore

Darktrace logo

Darktrace

Cybersecurity

Autonomous threat detection and response

From
$20000/year
Rated
-
Full reviewWebsite
Sigstore logo

Sigstore

Cybersecurity

Free public signing and transparency infrastructure for open source artifacts

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Sigstore has a free tier, so it costs nothing to try first.
  • Each has a real cost: Darktrace no pricing information published on website; vendors must request pricing through demo request form or contact sales; Sigstore the security model depends on somebody watching the log. The documentation states that compromise of an identity provider or of Fulcio itself is detectable only if third parties monitor the transparency log, the monitoring tool is a community-tier rather than core project, and almost no consumer runs one.
  • They diverge on capability: Darktrace covers Self-learning AI, Sigstore covers Fulcio.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Darktrace and Sigstore actually diverge.

Attributes where Darktrace and Sigstore differ
AttributeDarktraceSigstore
Starting price$20000/yearFree
Pricing modelsubscriptionOpen source, public instance free to use
Free tierNoYes
PlatformsNetwork, Cloud, EmailWeb, Linux, macOS, Windows, Self-hosted
Founded2013Unknown

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 Darktrace

  • Self-learning AI
  • Network anomaly detection
  • Autonomous response
  • Behavioral analysis
  • Threat model visualization
  • Email security
  • Application control
  • Incident response automation

Only in Sigstore

  • Fulcio
  • Rekor
  • Keyless signing
  • Multi-language clients
  • Timestamp authority
  • Neutral governance

What people use each for

The jobs each tool is most often brought in to do.

Darktrace

  • Threat Detectionnot Sigstore
  • Ndrnot Sigstore
  • Incident Responsenot Sigstore

Sigstore

  • Open source projects signing releases without running a certificate authoritynot Darktrace
  • Organisations meeting a signed-artifact requirement without buying a signing productnot Darktrace
  • Publishing provenance that a consumer can verify independently of younot Darktrace
  • Self-hosting the same components where a public log is unacceptablenot Darktrace

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Darktrace

  • No pricing information published on website; vendors must request pricing through demo request form or contact sales
  • No tiered pricing structure available to compare editions or select appropriate plan level before contacting sales

Sigstore

  • The security model depends on somebody watching the log. The documentation states that compromise of an identity provider or of Fulcio itself is detectable only if third parties monitor the transparency log, the monitoring tool is a community-tier rather than core project, and almost no consumer runs one.
  • It is a 99.5 percent objective with no service level agreement, which permits several hours of downtime a month and offers no remedy. A pipeline that signs on every build has taken a hard dependency on a free service with no contract behind it.
  • Log scale is a live engineering problem rather than a theoretical one. The active shard holds billions of entries, the log has already been sharded twice, and sharding version 1 requires stopping traffic, which is why a replacement was built.
  • Ten-minute certificates make trust depend on log availability. Verifying an older signature relies on the log entry proving it was made inside that window, so a lost or unreachable entry can render a valid artifact unverifiable.
  • Migration debt is substantial and ongoing. Version 2 of the log is generally available but not the public default, the signing client has an announced breaking release ahead, some official clients lag the new log format, and a post-quantum migration is named as the next break after that.

Pricing, plan by plan

Darktrace

$20000/year
  • Detect$20000/year
    • Network anomaly detection
    • AI-powered threat detection
    • Compliance reporting
  • Detect & Respond$35000/year
    • All Detect features
    • Autonomous response
    • Email security
  • Enterprise$50000/year
    • All features
    • Dedicated support
    • Custom training

Sigstore

Free
  • Public good instanceFree
    • Free to everyone with no contract
    • 99.5 percent availability objective, not an agreement
    • 100KB cap per attestation upload
  • Self-hostedFree
    • Apache-2.0
    • Run your own Fulcio and Rekor
    • Rekor v2 available for self-hosters

Which should you pick?

Choose Darktrace if

  • You need self-learning ai.
  • You work on Network, Cloud, Email.
  • You also want network anomaly detection.
Darktrace review

Choose Sigstore if

  • You need fulcio.
  • You want to start without paying.
  • You work on Web, Linux, macOS, Windows, Self-hosted.
  • You also want rekor.
Sigstore review

Questions people ask

Is Darktrace or Sigstore better?
Neither clearly leads. Darktrace starts at $20000/year and Sigstore at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Darktrace or Sigstore?
Sigstore has a free tier; the other does not. Paid plans start at $20000/year for Darktrace and Free for Sigstore.
Does Darktrace or Sigstore run on more platforms?
Darktrace runs on Network, Cloud, Email. Sigstore runs on Web, Linux, macOS, Windows, Self-hosted.
Can I use Sigstore for free?
Yes. Sigstore has a free tier, so you can try it without paying. Darktrace starts at $20000/year.
What is Darktrace best used for?
Darktrace is most often used for threat detection, ndr, incident response. Of those, threat detection and ndr are not what Sigstore is typically brought in for.
What can Darktrace do that Sigstore cannot?
Darktrace covers Self-learning AI, Network anomaly detection, Autonomous response, Behavioral analysis. Sigstore covers Fulcio, Rekor, Keyless signing, Multi-language clients.

Answered from the vendors’ own pages

Darktrace: How much does Darktrace cost?

Darktrace does not publish pricing information on its website. To obtain pricing details and learn about available packages, customers must contact Darktrace directly by requesting a demo or reaching out through the company's contact form.

Source
Sigstore: Is the public instance really free?

Yes, with no contract and no paid tier. That is also the weakness: a 99.5 percent objective with no agreement, no remedy and support through Slack.

Darktrace: Does Darktrace offer a free trial?

Darktrace mentions a free trial option, but specific trial length, features included, and how to access it are not published on the website. Users must contact the company directly to inquire about trial availability.

Source
Sigstore: Has the public log moved to Rekor v2?

No. Version 2 reached general availability in October 2025 and self-hosters can use it, but the public instance still defaults to version 1 and the project has said it will for the foreseeable future.

Sigstore: Does Sigstore make my dependencies safe?

No, and this is a category error worth avoiding. It tells you who published something. It has no knowledge of what the artifact contains or whether it is vulnerable.

Sigstore: What are the rate limits?

Not published. Only the 100KB cap per attestation upload is documented, so do not design a high-volume pipeline around assumed throughput.

Sigstore: Should we self-host it?

If a public record of every signature is unacceptable, or if a free service with no agreement cannot sit in your build path, then yes. Otherwise the public instance is what most projects use.

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