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Cybersecurity · head to head

Palo Alto Networks Prisma Cloud vs Sigstore

Palo Alto Networks Prisma Cloud logo

Palo Alto Networks Prisma Cloud

Cybersecurity

Cloud-native application protection platform

From
On request
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: Palo Alto Networks Prisma Cloud listed on UK G-Cloud at £147.54 per unit for Palo Alto Networks Prisma Cloud, via reseller Phoenix Software Limited, with the billing period not stated on the listing; 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: Palo Alto Networks Prisma Cloud covers Cloud Security Posture Management, Sigstore covers Fulcio.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Palo Alto Networks Prisma Cloud and Sigstore actually diverge.

Attributes where Palo Alto Networks Prisma Cloud and Sigstore differ
AttributePalo Alto Networks Prisma CloudSigstore
Starting priceOn requestFree
Pricing modelsubscriptionOpen source, public instance free to use
Free tierNoYes
PlatformsWeb, ApiWeb, Linux, macOS, Windows, Self-hosted
Founded2005Unknown

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 Palo Alto Networks Prisma Cloud

  • Cloud Security Posture Management
  • Cloud Workload Protection
  • Cloud Network Security
  • Cloud Identity Security
  • Code Security
  • API Security
  • Data Security
  • Microsegmentation

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.

Palo Alto Networks Prisma Cloud

  • Cloud Securitynot Sigstore
  • Cspmnot Sigstore
  • Cwppnot Sigstore

Sigstore

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

Where each one falls short

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

Palo Alto Networks Prisma Cloud

  • Listed on UK G-Cloud at £147.54 per unit for Palo Alto Networks Prisma Cloud, via reseller Phoenix Software Limited, with the billing period not stated on the listing

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

Palo Alto Networks Prisma Cloud

On request
  • Cloud SecurityFree
    • CSPM
    • CWPP
    • CIEM
  • Code SecurityFree
    • IaC security
    • SCA
    • Secrets scanning
  • Prisma Cloud EnterpriseFree
    • Full platform
    • API security
    • Data security

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 Palo Alto Networks Prisma Cloud if

  • You need cloud security posture management.
  • You work on Web, Api.
  • You also want cloud workload protection.
Palo Alto Networks Prisma Cloud 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 Palo Alto Networks Prisma Cloud or Sigstore better?
Neither clearly leads. Palo Alto Networks Prisma Cloud starts at On request and Sigstore at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Palo Alto Networks Prisma Cloud or Sigstore?
Sigstore has a free tier; the other does not. Paid plans start at On request for Palo Alto Networks Prisma Cloud and Free for Sigstore.
Does Palo Alto Networks Prisma Cloud or Sigstore run on more platforms?
Palo Alto Networks Prisma Cloud runs on Web, Api. 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. Palo Alto Networks Prisma Cloud starts at On request.
What is Palo Alto Networks Prisma Cloud best used for?
Palo Alto Networks Prisma Cloud is most often used for cloud security, cspm, cwpp. Of those, cloud security and cspm are not what Sigstore is typically brought in for.
What can Palo Alto Networks Prisma Cloud do that Sigstore cannot?
Palo Alto Networks Prisma Cloud covers Cloud Security Posture Management, Cloud Workload Protection, Cloud Network Security, Cloud Identity Security. Sigstore covers Fulcio, Rekor, Keyless signing, Multi-language clients.

Answered from the vendors’ own pages

Palo Alto Networks Prisma Cloud: How much does Prisma Cloud cost?

Prisma Cloud pricing is not published publicly. Pricing is provided through the sales team via a custom quote based on your deployment scope and requirements.

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.

Palo Alto Networks Prisma Cloud: Is there a free trial for Prisma Cloud?

No free trial is available without contacting the sales team. The company offers a demo through the product demo center or by requesting a demo through their sales process.

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.

Palo Alto Networks Prisma Cloud: What do I need to do to get Prisma Cloud pricing and start a trial?

You must contact the sales team via the Contact Us link or request a demo. Pricing details are provided only through direct sales engagement.

Source
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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