Cybersecurity · head to head
Cosign vs Kaspersky Total Security
Cosign
Cybersecurity
Signs and verifies container images and artifacts, with or without managing keys
- From
- Free
- Rated
- -
Kaspersky Total Security
Cybersecurity
Complete protection for your digital life
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Cosign keyless signing inherits every weakness of the identity provider behind it. Sigstore’s own threat model states that if an identity provider is compromised, Sigstore will issue certificates to those identities, so a compromised account produces perfectly valid signatures.; Kaspersky Total Security uS sales banned since June 2024 with support ending September 29, 2024
- They diverge on capability: Cosign covers Keyless signing, Kaspersky Total Security covers Real-time protection.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Cosign and Kaspersky Total Security actually diverge.
| Attribute | Cosign | Kaspersky Total Security |
|---|---|---|
| Pricing model | Open source, no licence fee | Unknown |
| Platforms | macOS, Linux, Windows, Docker | Windows, macOS, iOS, Android |
| Founded | Unknown | 1997 |
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 Cosign
- Keyless signing
- Key and KMS signing
- Registry-native storage
- In-toto attestations
- Offline verification
- Trusted root and signing config
Only in Kaspersky Total Security
- Real-time protection
- Ransomware protection
- Safe Money
- Privacy protection
- Parental controls
- Password manager
- VPN
- File encryption
What people use each for
The jobs each tool is most often brought in to do.
Cosign
- Signing container images in a build pipeline without managing long-lived private keysnot Kaspersky Total Security
- Attaching a signed bill of materials to a release so consumers can verify its provenancenot Kaspersky Total Security
- Meeting a customer or regulatory requirement for signed artifactsnot Kaspersky Total Security
- Verifying third-party images before they enter an internal registrynot Kaspersky Total Security
Kaspersky Total Security
- Antivirusnot Cosign
- Internet Securitynot Cosign
- Parental Controlnot Cosign
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Cosign
- Keyless signing inherits every weakness of the identity provider behind it. Sigstore’s own threat model states that if an identity provider is compromised, Sigstore will issue certificates to those identities, so a compromised account produces perfectly valid signatures.
- A signature proves who signed, never whether they should have. The documentation is explicit that Sigstore cannot determine authorisation, so every consumer must write and maintain their own identity and issuer policy or verification means nothing.
- Nothing is enforced without an admission controller. Signing changes what you can prove, not what runs, and the official policy controller has a small maintainer base for a component sitting in a cluster admission path.
- Upgrades break pipelines. Version 3 changed defaults, version 4 is announced as removing legacy functionality and roughly half the command line flags, and two official client libraries still lacked support for the new log format as of mid 2026.
- Signatures do not expire. An artifact signed before a maintainer account was compromised and one signed after are indistinguishable unless somebody is actively monitoring the transparency log, and almost nobody is.
Kaspersky Total Security
- US sales banned since June 2024 with support ending September 29, 2024
- VPN limited to 200 MB per day and servers in only 24 countries
- Password manager has privacy concerns with questionable terms and policies
- VPN and password manager only included in Plus and Premium tiers, not in Standard
- Occasionally flags legitimate files as false positives
- Firewall leaves open ports on public networks
Pricing, plan by plan
Cosign
Free- CosignFree
- Apache-2.0
- Public Sigstore infrastructure free to use
- No usage limits published
Kaspersky Total Security
Free- FreeFree
- Basic antivirus
- No real-time protection
- Standard$38.99/year
- Antivirus
- Firewall
- Anti-phishing
- Plus$52.99/year
- Standard features
- Password manager
- VPN with limit
- Premium$74.99/year
- Plus features
- Identity protection
- Unlimited VPN
Which should you pick?
Choose Cosign if
- You need keyless signing.
- You want to start without paying.
- You work on macOS, Linux, Windows, Docker.
- You also want key and kms signing.
Choose Kaspersky Total Security if
- You need real-time protection.
- You want to start without paying.
- You work on Windows, macOS, iOS, Android.
- You also want ransomware protection.
Questions people ask
- Is Cosign or Kaspersky Total Security better?
- Neither clearly leads. Cosign starts at Free and Kaspersky Total Security at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Cosign or Kaspersky Total Security?
- Cosign starts at Free and Kaspersky Total Security at Free.
- Does Cosign or Kaspersky Total Security run on more platforms?
- Cosign runs on macOS, Linux, Windows, Docker. Kaspersky Total Security runs on Windows, macOS, iOS, Android.
- Can I use Cosign for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Cosign best used for?
- Cosign is most often used for signing container images in a build pipeline without managing long-lived private keys, attaching a signed bill of materials to a release so consumers can verify its provenance, meeting a customer or regulatory requirement for signed artifacts, verifying third-party images before they enter an internal registry. Of those, signing container images in a build pipeline without managing long-lived private keys and attaching a signed bill of materials to a release so consumers can verify its provenance are not what Kaspersky Total Security is typically brought in for.
- What can Cosign do that Kaspersky Total Security cannot?
- Cosign covers Keyless signing, Key and KMS signing, Registry-native storage, In-toto attestations. Kaspersky Total Security covers Real-time protection, Ransomware protection, Safe Money, Privacy protection.
Answered from the vendors’ own pages
Cosign: Does Cosign tell me if an image is vulnerable?
No. It has no vulnerability knowledge whatsoever. It can carry an SBOM as a signed attestation but never reads it. Pair it with a scanner.
Kaspersky Total Security: What does Kaspersky Total Security include?
Kaspersky Total Security (Premium tier) includes antivirus, firewall, password manager, VPN with 200 MB daily limit, parental controls (Kaspersky Safe Kids), and anti-ransomware protection.
SourceCosign: Is signing alone enough?
No. Verification is a command somebody runs. Without an admission controller enforcing it, an unsigned image still runs.
Kaspersky Total Security: How much does Kaspersky Total Security cost?
Kaspersky Standard costs $38.99/year for 3 devices. Plus tier is $52.99/year for 5 devices. Premium is $74.99/year for 10 devices. Multi-year discounts available.
SourceCosign: What does a bare cosign verify actually prove?
Very little. Without a pinned certificate identity and OIDC issuer, it accepts a valid signature from any identity at all.
Kaspersky Total Security: Is Kaspersky available in the United States?
No. The U.S. government banned Kaspersky software sales in June 2024, with support and software updates ceasing September 29, 2024, citing national security concerns regarding Russian government ties.
SourceCosign: What is the risk of keyless signing?
Your OIDC provider becomes the root of trust. Compromise of that account yields genuine, verifiable signatures, so account security is the control that matters.
Kaspersky Total Security: Does Kaspersky have parental controls?
Yes. Premium and Plus tiers include one year free access to Kaspersky Safe Kids parental controls app, which provides activity reports, app monitoring, usage limits, and geo-fencing with location tracking.
SourceCosign: Should we expect breaking changes?
Yes. Version 4 is announced to remove roughly half the flags, and a post-quantum migration is named as a further breaking change after that.
Kaspersky Total Security: How much does the VPN provide?
Kaspersky's free VPN (Kaspersky Secure Connection) offers only 200 MB per day of traffic, limiting data usage. Full VPN is included in Plus and Premium plans but with limited servers in only 24 countries.
SourceRelated pages
More on Kaspersky Total Security
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