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The AI-native security vault for the post-quantum era

Your identity.
Secured for what comes next.

AI-native credential and identity protection with zero-knowledge security and a crypto-agile architecture built for the post-quantum era.

Passwords. Passkeys. Identities. Secrets.
One intelligent security vault.

  • Zero Knowledge
  • Zero Trust
  • Crypto-Agile
  • Post-Quantum Ready
  • Passwordless
  • Least Privilege
  • Privacy by Design
  • Secure by Default

One vault

One vault. Every identity.

Everything that proves who you are — encrypted on your device before it ever leaves it.

Strong, unique, filled for you

Generate, store and autofill passwords for every site. Weak, reused and exposed passwords are flagged on your device.

Encrypted on device · AES-256-GCM

Bank of Example

login · personal

Healthy
Username
alex@example.com
Password
••••••••••••••••
Strength
Very strong · 112 bits
server view: { v:3, alg:"A256GCM", iv:"9f2c…", ct:"Qm9mL…" }

Passwordless and phishing-resistant

Create and sync passkeys across your devices. Private keys are bound to the real site, so a look-alike page can't use them.

Encrypted on device · AES-256-GCM

github.com

passkey · synced

Healthy
Relying party
github.com
Credential
ES256 · discoverable
Last used
Today, 09:41
server view: { v:3, alg:"A256GCM", iv:"9f2c…", ct:"Qm9mL…" }

API keys and tokens, out of your code

Store tokens and environment credentials, inject them at runtime, and prefer short-lived credentials over permanent ones.

Encrypted on device · AES-256-GCM

prod / payments

secret · 3 values

Healthy
STRIPE_KEY
rk_live_••••••••••
Rotation
Every 30 days
Access
deploy-bot · ttl 15m
server view: { v:3, alg:"A256GCM", iv:"9f2c…", ct:"Qm9mL…" }

Documents and recovery, in one place

Keep identity documents, recovery codes and payment cards encrypted, and share them with a trusted person when needed.

Encrypted on device · AES-256-GCM

Passport

identity · encrypted file

Healthy
Holder
A. Morgan
Number
U•••••••
Expires
In 4 years
server view: { v:3, alg:"A256GCM", iv:"9f2c…", ct:"Qm9mL…" }

SSH keys that never sit on disk

Generate and use SSH keys through the ARKCRON agent. Approve each use with a passkey or biometric, per host.

Encrypted on device · AES-256-GCM

deploy@prod-eu

ssh · ed25519

Healthy
Public key
ssh-ed25519 AAAAC3Nz…
Private key
Stored in vault
Approval
Biometric per session
server view: { v:3, alg:"A256GCM", iv:"9f2c…", ct:"Qm9mL…" }

ARKCRON AI Security Engine

AI that protects your secrets — without reading them.

Your device analyzes the vault locally. Only privacy-preserving signals reach the risk engine — never your plaintext secrets, never your master key.

  • Spots weak, reused and exposed credentials before attackers do
  • Flags impossible travel, new devices and unusual sign-in behavior
  • Detects phishing indicators when a site doesn't match the saved one
  • Explains every recommendation — no black-box decisions

Live risk analysis

Credential exposure

ARKCRON detected that this credential may have appeared in a recent breach. We recommend replacing it.

signal: k-anonymous hash prefix · plaintext never sent

Login blocked

Authentication behavior differs significantly from your normal pattern.

signals: new device · impossible travel (Istanbul → São Paulo, 40 min)

  1. Vault

    Plaintext on device

  2. Local analysis

    Strength, reuse, age

  3. Signals

    Scores, hashes

  4. Risk engine

    Score + advice

Sign-in request · Signals

Device
Managed laptop · trusted
Location
Usual country
Behavior
Matches pattern
Policy
Finance apps: phishing-resistant
  • Passkey on trusted deviceLow risk
  • Passkey + biometric re-checkElevated risk
  • Hardware security key, or blockHigh risk
Decision: allow with passkey · logged with reasons

Multi-factor & passwordless

The right factor, at the right moment.

ARKCRON weighs device, location, behavior and policy, then asks for exactly as much proof as the risk requires — passkeys by default, stronger factors when it matters.

  • Passkeys / WebAuthn
  • FIDO2 security keys
  • Biometrics
  • TOTP
  • Push approval
  • Device-bound keys
  • Adaptive MFA
  • Risk-based policies
  • Enterprise SSO

Zero-knowledge architecture

Your secrets belong to you. Not to us.

Encryption happens on your device with keys only you can derive. ARKCRON infrastructure stores ciphertext — designed so we never need access to your plaintext vault contents.

We store

Ciphertext, wrapped keys, public keys, minimal metadata

Designed never to receive

Master secret, vault keys, plaintext items

  1. 01

    User master secret

    on device

    Your master password or a passkey-unlocked device key. Never transmitted.

  2. 02

    Local key derivation

    Argon2id · RFC 9106

    Argon2id stretches your secret into a key-encryption key with a per-account salt.

  3. 03

    Encryption on device

    AES-256-GCM

    Each item is sealed with AES-256-GCM under keys wrapped by your vault key.

  4. 04

    Encrypted data sent

    TLS 1.3

    Only ciphertext and wrapped keys travel, inside TLS 1.3.

  5. 05

    Ciphertext only, at rest

    zero-knowledge

    ARKCRON infrastructure stores data it cannot decrypt on its own.

Post-quantum ready

Built for the post-quantum era.

Data stolen today could be decrypted by a future quantum computer. ARKCRON's crypto-agile design combines proven classical algorithms with NIST-standardized post-quantum ones — so an attacker would need to break both.

Hybrid key establishmentYour device and the recipient run X25519 and ML-KEM-768 in parallel. Both shared secrets enter a key derivation function to produce one session key.Your deviceRecipient / serviceX25519 · classicalML-KEM-768 · FIPS 203ss₁ss₂ss₁ss₂KDFKDFSession key = KDF(ss₁ ‖ ss₂ ‖ transcript)Breaking one algorithm alone is not enough to recover the key.
Cryptographic building blocks
PurposeAlgorithm
Vault encryptionAES-256-GCM
Password-based KDFArgon2id (RFC 9106)
Key establishmentX25519 + ML-KEM-768 (FIPS 203)
SignaturesEd25519 + ML-DSA (FIPS 204)
TransportTLS 1.3, hybrid PQC where supported
AgilityVersioned ciphertext, re-wrappable keys

Post-quantum ready is not “quantum-proof”. It means our design follows current NIST standards and can adopt new algorithms without re-encrypting your secrets by hand.

Security dashboard

Your security posture, in one glance.

A single score, the metrics that move it, and clear next steps from the AI Security Engine.

vault.arkcron.com

Good evening

Security overview

AI Security Engine active

92/100

Excellent

Security score

Up 6 points since you enabled passkeys on 4 accounts.

  • Weak passwords

    3

  • Reused passwords

    2

  • Compromised

    0

  • Passkey coverage

    74%

  • MFA coverage

    91%

  • Suspicious sessions

    1

AI Security Insights

no plaintext accessed
  • 3 accounts can be migrated to passkeys.

    Supported sites detected · on-device analysis

    Migrate
  • Your GitHub credential has not been rotated for 214 days.

    Credential age signal · on-device

    Rotate
  • Sign-in from a new device requires verification.

    MacBook · Frankfurt · 2 min ago

    Review
  • Overall identity exposure decreased by 18% this month.

    Trend · 30 days

    Details

Sessions

  • iPhone 16 · Passkey

    Istanbul

    Trusted
  • Windows · FIDO2 key

    Ankara

    Trusted
  • MacBook · Password

    Frankfurt

    Step-up
  • CLI · Short-lived token

    eu-central-1

    Expires 42m
Product concept. Values are illustrative.

Enterprise identity security

Identity security your auditors can follow.

Centralize credentials, enforce policy, and prove it — with SSO, SCIM, conditional access and audit trails that stream to your SIEM.

Enterprise & shared vaults

RBAC, least-privilege sharing and access reviews across teams.

SSO & SCIM

Provision and deprovision from your identity provider automatically.

Conditional access & device trust

Require compliant devices and phishing-resistant factors per app.

Audit logs & SIEM

Tamper-evident logs exported to your SIEM and SOC workflows.
  • Microsoft Entra ID
  • Okta
  • Google Workspace
  • GitHub
  • GitLab
  • AWS
  • Azure
  • Slack
  • Jira

Designed to work with standard protocols (OIDC, SAML 2.0, SCIM 2.0, syslog/HTTPS). Product names are trademarks of their owners and do not imply partnership or endorsement.

ARKCRON Developer Vault

Fewer permanent secrets. More short-lived access.

Keep API keys, SSH keys and certificates out of repos and laptops. The CLI authenticates with a passkey and hands your app credentials that expire on their own.

  1. Developer

  2. ARKCRON CLI

  3. Auth session

  4. Temp credential

  5. App / Cloud

zsh — arkcron
$ arkcron login --passkey✓ Authenticated as dev@example.com (passkey · device trusted)$ arkcron run --env prod -- ./deploy.sh→ policy: prod-deploy · approver: not required · risk: low  injecting 3 secrets as env vars (never written to disk)  AWS_ROLE      sts session · ttl 15m  DB_URL        scoped read/write · ttl 15m  STRIPE_KEY    restricted key · ttl 15m✓ deploy finished · credentials revoked$ arkcron scan .! 1 hard-coded secret found in config/legacy.env:4  suggestion: arkcron import --from config/legacy.env --rotate$ 

Security architecture

Trust from architecture, not adjectives.

Five layers, one rule: plaintext and keys live on your devices. Everything beyond the device boundary handles ciphertext, signals and policy.

  1. L5

    Clients

    • Desktop
    • Mobile
    • Browser extension
    • CLI & SSH agent

    Plaintext exists only here

  2. L4

    On-device crypto core

    • Argon2id KDF
    • AES-256-GCM
    • Hybrid KEM
    • Local AI analysis

    Keys derived and used locally

  3. L3

    Transport

    • TLS 1.3
    • Hybrid PQC key exchange
    • Certificate pinning (apps)
    • Signed requests

    Defense in depth over encrypted payloads

  4. L2

    ARKCRON Cloud

    • Ciphertext store
    • Auth & policy service
    • AI Risk Engine
    • Audit log

    Stores ciphertext, never master secrets

  5. L1

    Integrations

    • SSO / OIDC / SAML
    • SCIM
    • SIEM export
    • Cloud credential brokers

    Least-privilege, scoped, logged

Trust boundary between L4 and L3: only ciphertext crosses

Pricing

Start free. Grow into it.

The same zero-knowledge encryption on every plan. Upgrade for AI security, family sharing, or team identity security.

  • Free

    Start securing your identity

    $0$0forever

    Get started
    • Zero-knowledge vault for 1 person
    • Unlimited passwords on 2 devices
    • Passkey storage and sign-in
    • Weak and reused password alerts
    • Basic breach monitoring
  • Most popular

    Personal Pro

    AI-assisted protection for you

    $3.99$4.99/ month

    Start 30-day trial

    Everything in Free, plus

    • ARKCRON AI Security Engine
    • Identity and dark-web exposure monitoring
    • Unlimited devices and passkeys
    • Hardware keys, TOTP and push
    • Secure notes, documents, SSH keys
    • Emergency access
  • Family

    Up to 6 people, one plan

    $6.99$8.99/ month

    Start 30-day trial

    Everything in Pro, for 6, plus

    • Private vault for every member
    • Shared family vaults
    • Family security dashboard
    • Guided recovery for members
    • Child-friendly vault controls
  • Business

    Teams and growing companies

    $8$10/ user / month

    Start free trial

    Everything in Pro, plus

    • Team and shared vaults
    • Role-based access control
    • SSO with your identity provider
    • SCIM user provisioning
    • Security policies and admin console
    • Developer vaults and CLI
  • Enterprise

    Regulated and large organizations

    CustomCustomannual agreement

    Contact sales

    Everything in Business, plus

    • Advanced IAM and access reviews
    • Conditional access and device trust
    • SIEM and SOC integrations
    • Advanced, exportable audit trails
    • Enterprise policy engine
    • Dedicated support and security reviews

Prototype pricing in USD, excluding taxes. Every plan uses the same zero-knowledge encryption — security is never a paid upgrade.

FAQ

Straight answers.

More detail in the Trust Center.

Can ARKCRON see my passwords?

No. Your vault is encrypted on your device with keys derived from your master secret. ARKCRON's servers store ciphertext and wrapped keys only, and the system is designed so we never need your plaintext vault contents or your master secret.

How does the AI work if it can't read my vault?

Analysis that needs plaintext — strength, reuse, age, URL matching — runs on your device. Only derived signals such as scores, counts and anonymized hash prefixes reach the ARKCRON AI Risk Engine. The engine returns recommendations; your device decides what to show and you decide what to do.

What does “post-quantum ready” actually mean?

Key establishment for sharing and sync is designed to combine classical X25519 with ML-KEM-768 (NIST FIPS 203), so an attacker would need to break both. Vault data is encrypted with AES-256-GCM, which retains a large security margin against known quantum attacks. Every ciphertext carries an algorithm version so keys can be re-wrapped as standards evolve. It does not mean “quantum-proof” — no one can honestly promise that.

What happens if I forget my master password?

Because we can't decrypt your vault, we can't reset it for you. You can set up recovery in advance: a printed recovery kit, a trusted recovery contact, or a second enrolled device or passkey. Enterprise vaults can use admin-assisted recovery with a separately held recovery key.

Do I still need passwords if I use passkeys?

Increasingly, no. ARKCRON stores and syncs passkeys and tells you which of your accounts support them. For sites that still require passwords, the vault generates and fills strong unique ones.

Is ARKCRON certified?

ARKCRON publishes a compliance roadmap that includes ISO/IEC 27001 and SOC 2 Type II, and designs its controls in line with GDPR and KVKK. We will only display a certification once an independent audit has been completed. See the Trust Center for status.

Can I import from my current password manager?

Yes. Import from common CSV and encrypted export formats. Imports are parsed and encrypted on your device; the export file never needs to be uploaded.

Start with one vault. Keep it for what comes next.

Free for individuals. No card required. Your keys stay on your devices from the first minute.