[INDIA] RBI, SEBI and IRDAI · Source-code escrow and continuity obligations for critical applications[EU DORA] ICT third-party risk testing required · In force Jan 2025[PRA] SS2/21 UK · Vendor recovery evidence required[MAS] Singapore TRM · Independent vendor recoverability expected[APRA] CPS 230 Australia · Third-party continuity obligations in force[FFIEC] United States · Source-code access and software escrow addressed in third-party contracts[ENTERPRISE] Mission-critical software procurement increasingly requires continuity evidence before contract
[INDIA] RBI, SEBI and IRDAI · Source-code escrow and continuity obligations for critical applications[EU DORA] ICT third-party risk testing required · In force Jan 2025[PRA] SS2/21 UK · Vendor recovery evidence required[MAS] Singapore TRM · Independent vendor recoverability expected[APRA] CPS 230 Australia · Third-party continuity obligations in force[FFIEC] United States · Source-code access and software escrow addressed in third-party contracts[ENTERPRISE] Mission-critical software procurement increasingly requires continuity evidence before contract

CYBERSECURITY SOFTWARE ESCROW

Cybersecurity Software Escrow: Secure Custody and Recovery for Critical Vendor Software

Castler's cybersecurity software escrow keeps your vendors' software in encrypted custody, inventories every component and proves the software can be rebuilt and run without the vendor. A named engineer signs the result.

100+ enterprise customersISO 27001, SOC 2 Type II, CERT-In and PCI DSS assured17 mandates across 9 jurisdictions

Critical vendor

Cyber incident reported

VENDOR INCIDENT
  • Deposit seal intactAES-256 custody, SHA-256 integrity seal
  • SBOM and CBOM readComponents, dependencies and cryptography
  • Rebuilt without the vendorDeployed and replicated in a clean environment
  • Engineer's SealProof of Recovery signed for this release

Flagged in the release

  • Deprecated cryptography
  • Undeclared dependency
  • Licence exposure

Illustrative interface

When a Vendor Is Hit, Your Operations Stop

Castler's incident tracker shows how a cyber event at a vendor reaches you:

Jaguar Land Rover (2025)

A cyberattack halted 5,000 suppliers, cost £1.9B and caused a five-week shutdown.

CrowdStrike (2024)

A faulty update affected 7,000 Delta Air Lines flights and cost about $500M.

Most software estates are not tested for this:

40 to 60

critical vendors in a typical estate

2 to 3

covered by deep verification

98%

never independently verified

Cybersecurity Solutions for Vendor Software

Castler's cybersecurity solutions for vendor software combine four controls:

Secure custody

Encrypted, isolated, versioned and tamper-evident.

Component visibility

An SBOM and CBOM for each verified release.

Independent rebuild

AI agents rebuild, deploy and replicate the software in a clean environment.

Signed evidence

A named Castler engineer signs a numbered Proof of Recovery.

Secure Custody for Software Cybersecurity

  • Encrypted: AES-256, in transit and at rest.

  • Sealed: a SHA-256 integrity seal on every deposit, held immutable.

  • Isolated: logically separated by customer, with role-based access.

  • Auditable: every deposit records the timestamp, commit hash, release identifier, depositor and source repository.

  • Regional: AWS, Google Cloud or Azure custody in India, the UK, the EU, the US, Singapore or the UAE, subject to your agreement.

Know What Is Inside Vendor Software

Standard Verification adds an SBOM and CBOM to your software cybersecurity record.

It shows:

  • Every component and dependency in the release
  • Vulnerability severity and a licence summary
  • A cryptographic inventory

It also detects:

  • Weak, deprecated or non-compliant cryptography
  • Undeclared dependencies and private vendor repositories
  • Undisclosed licence exposure

Premium Recoverability adds hidden runtime dependencies, such as a vendor-hosted service or licence key.

Recover After a Vendor Incident

Step 1, Custody:

Always-current source, configuration and scripts in secure custody.

Step 2, Agentic verification:

AI agents rebuild, deploy and replicate the application.

Step 3, Engineer's Seal:

A named Castler engineer reviews and signs.

Step 4, Signed Proof of Recovery:

A numbered pack for that exact release.

Verification takes 6 to 18 hours per codebase, at about 90% lower cost than current verification. With Premium Recoverability, each new release gets a new verification.

Evidence for Cybersecurity Risk Management

Every pack gives your cybersecurity risk management file:

Build Report

Independent build evidence for the release.

Deployment Runbook

A procedure your team can execute without the vendor.

Replication Report

Proof that the production architecture was recreated.

SBOM

A release-specific inventory of components.

Confidence Score

A current measure of verified recoverability.

Engineer's Seal

A named engineer's signature.

Boards, regulators, auditors and insurers can examine the same pack.

Built for Your Regulator

Castler maps its evidence to 17 mandates across 9 jurisdictions, so your cybersecurity risk management records answer what regulators ask for. Examples:

Castler does not claim that software alone guarantees compliance. It supplies tested technical evidence for your own controls.

Who It Is For

CISOs accountable for software cybersecurity and vendor risk

CIOs and heads of IT risk and third-party risk management

Compliance teams

Boards and risk committees that need current recovery evidence

Pricing

Per application per year, with no setup fee:

Cloud Storage

$2,000

per application per year

With secure custody and a deposit report

Standard Verification

$3,500

per application per year

With build verification, SBOM and CBOM

Premium Recoverability

$7,500

per application per year

With rebuild, run and a signed Proof of Recovery

Bundles of up to 10 applications: $7,500, $15,000 and $45,000

Book a 15-min Demo

Trusted by Banks and Enterprises

100+

enterprise customers

150+

escrow agreements

  • HDFC Bank
  • SBI
  • Canara Bank
  • Union Bank
  • Indian Bank
  • India Post Payments
  • NSDL Payments
  • Pine Labs
  • Mahindra Finance

FAQ

Frequently Asked Questions

Is this a security scanner?+

No. Castler's cybersecurity software escrow does not replace your security tools or incident plans. It adds secure custody, a component inventory and recovery evidence.

When can we get the vendor's software?+

When a release condition in your agreement is met. Castler lists insolvency, acquisition, discontinuation, support failure and other negotiated conditions.

How secure is the deposit?+

It is encrypted with AES-256, sealed with SHA-256, isolated by customer and recorded in a full audit trail.

Which tier shows what is inside the software?+

Standard Verification and above include the SBOM and CBOM.

How long does verification take?+

6 to 18 hours per codebase, against 2 to 4 weeks for traditional human-led verification.

Will regulators accept a Proof of Recovery?+

Castler's artefacts are designed to map to CRA, NIS2, DORA, SEBI CSCRF, IRDAI and RBI requirements.

CYBERSECURITY SOFTWARE ESCROW

Know your vendors' software can be recovered after a cyber incident

Book a 15-min Demo. We will walk your software estate, name the regulation that applies to you and show you a real signed Proof of Recovery.

Book a 15-min Demo
ISO 27001SOC 2 Type IIPCI DSS

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