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Cybersecurity · head to head

Malwarebytes vs Sigstore

Malwarebytes logo

Malwarebytes

Cybersecurity

Protects every device, everywhere

From
Free
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

  • Each has a real cost: Malwarebytes pricing page information is incomplete or dynamically loaded, making transparent pricing comparison difficult for potential customers; 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: Malwarebytes covers Malware detection & removal, Sigstore covers Fulcio.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Malwarebytes and Sigstore actually diverge.

Attributes where Malwarebytes and Sigstore differ
AttributeMalwarebytesSigstore
Pricing modelfreemiumOpen source, public instance free to use
PlatformsWindows, macOS, iOS, AndroidWeb, Linux, macOS, Windows, Self-hosted
Founded2008Unknown

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 Malwarebytes

  • Malware detection & removal
  • Ransomware protection
  • Real-time protection
  • Anti-exploit
  • Anti-phishing
  • Browser Guard
  • VPN
  • Brute Force Protection

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.

Malwarebytes

  • Budget-conscious users performing manual scans via free versionnot Sigstore
  • Organisations needing real-time malware and ransomware protection via Premium subscriptionnot Sigstore
  • Users combining antivirus with privacy via Premium plus Privacy VPN bundlenot Sigstore

Sigstore

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

Where each one falls short

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

Malwarebytes

  • Pricing page information is incomplete or dynamically loaded, making transparent pricing comparison difficult for potential customers
  • Specific price amounts for different tiers (Individual, Family, Small business) are not clearly displayed on the main pricing page
  • No mention of free tier or free trial duration on pricing page, unclear what features are included in each tier

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

Malwarebytes

Free

No published plan breakdown. See the Malwarebytes review.

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 Malwarebytes if

  • You need malware detection & removal.
  • You want to start without paying.
  • You work on Windows, macOS, iOS, Android.
  • You also want ransomware protection.
Malwarebytes 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 Malwarebytes or Sigstore better?
Neither clearly leads. Malwarebytes starts at Free and Sigstore at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Malwarebytes or Sigstore?
Malwarebytes starts at Free and Sigstore at Free.
Does Malwarebytes or Sigstore run on more platforms?
Malwarebytes runs on Windows, macOS, iOS, Android. Sigstore runs on Web, Linux, macOS, Windows, Self-hosted.
Can I use Malwarebytes for free?
Both have a free tier, so you can try either at no cost before committing.
What is Malwarebytes best used for?
Malwarebytes is most often used for budget-conscious users performing manual scans via free version, organisations needing real-time malware and ransomware protection via premium subscription, users combining antivirus with privacy via premium plus privacy vpn bundle. Of those, budget-conscious users performing manual scans via free version and organisations needing real-time malware and ransomware protection via premium subscription are not what Sigstore is typically brought in for.
What can Malwarebytes do that Sigstore cannot?
Malwarebytes covers Malware detection & removal, Ransomware protection, Real-time protection, Anti-exploit. Sigstore covers Fulcio, Rekor, Keyless signing, Multi-language clients.

Answered from the vendors’ own pages

Malwarebytes: What is the refund policy for Malwarebytes subscriptions?

Malwarebytes offers a 60-day money back guarantee on all purchases. This allows customers to test the product across their devices (PC, Mac, Android, iOS) with full refund protection if unsatisfied.

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.

Malwarebytes: What platforms does Malwarebytes support?

Malwarebytes works on Windows PC, macOS, Android, and iOS. Multi-platform protection is available across all subscription tiers including Individual, Family, Small business, and Standard single device options.

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.

Malwarebytes: What is included in customer support with Malwarebytes?

Free customer support is included with all Malwarebytes subscription tiers. The product is backed by a 60-day money back guarantee for risk-free purchasing.

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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