Vault architecture
Separate deposit, hot-wallet and treasury vaults, with omnibus treasury accounts held in a ring-fenced liquidity pool kept apart from day-to-day operations.
Fireblocks for gambling operators
Crypto payments and treasury on Fireblocks — designed, secured and automated.
In 2026 I implemented Fireblocks for a newly launched online casino as an alternative to traditional payment and treasury rails. I designed the vault structure, wrote the policies and built the automations, so funds move quickly for players and nobody — inside or outside the business — can move them on their own.
What I delivered
A complete, production deployment — not a proof of concept
Each part was designed around how a casino actually moves money: many small deposits in, fast withdrawals out, and a treasury that has to stay safe in between.
Transaction policies
Rules for who can move what, where and how much: whitelisted destinations, value and velocity limits, and multi-person approval for anything outside normal operations.
API Co-signers on AWS
Co-signers running in AWS secure enclaves, with a callback check that tests every request against the business's own rules before anything is signed or approved.
Automated sweeping and top-ups
Player deposits are swept automatically into the omnibus treasury, and hot wallets are topped back up within policy limits, so withdrawals keep flowing without manual work.
Fraud and attack controls
Separation of duties, no single point of control, and automated rejection of transactions that break the rules — protecting against insider fraud as well as outside attackers.
Treasury privacy by design
Treasury addresses aren't publicly linked to the brand on-chain, which makes the business a harder target. Every movement stays fully recorded internally for audit, AML and regulators.
How it fits together
From player deposit to withdrawal, under policy at every step
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1
Player deposits
Each player pays into their own deposit address.
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2
Omnibus treasury
Held in a ring-fenced liquidity pool, separate from operations.
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3
Hot wallets
Funded only with what's needed for withdrawals.
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4
Player withdrawals
Paid quickly to the player's own address.
Every arrow is governed by policy. The policy engine and the co-signers on AWS check each movement against limits, whitelists and approval rules before it happens. Anything unusual is stopped and sent to people for approval.
Worked example
Example: vault structure for an online casino
How the vaults in a live casino deployment fit together: public-facing staging vaults around a private core, with automation where it is safe and manual approval where it matters.
How I can help
Whether you're starting out or already live
Crypto acceptance has to fit the conditions of each licence you hold. I design deployments with that in mind from the start.
Design and readiness
Vault structure, policy design, controls and operating procedures — before you commit to a build.
Implementation
Hands-on delivery of policies, co-signers and automations, working alongside your technology and finance teams.
Security review
An independent review of an existing deployment: who can move funds, where the gaps are and how to close them.
FAQ
Fireblocks questions
What operators usually ask before a deployment.
Can an online casino use Fireblocks for payments and treasury?
Yes, where the operator's licences allow crypto. Fireblocks can hold player deposits, treasury and withdrawal funds in separate vaults, with policies controlling every movement. I implemented this for a newly launched online casino in 2026.
What is a Fireblocks API Co-signer?
It is software you host in your own secure environment, such as AWS Nitro Enclaves, that automatically signs or approves transactions for designated API users. An optional callback check lets your own systems approve or reject each request before it is signed.
How are player deposits swept into treasury?
Each player deposits to their own address. Automations then sweep those deposits into an omnibus treasury vault, and top up hot wallets for withdrawals within set limits, so no one has to move funds by hand.
How do you protect against insider fraud and hackers?
Through separation of duties, whitelisted destinations, value and velocity limits, multi-person approval for anything unusual, and co-signers that check every request against the business's own rules. No single person can move funds on their own.
Can you review an existing Fireblocks deployment?
Yes. I offer independent security reviews covering who can move funds, how policies and co-signers are configured, and where the gaps are.
Important: this is not a legal practice
gamblingconsultant.io is a sector-specific business advisory for the gambling industry. It is not a law firm or legal practice, and it is not regulated by the Solicitors Regulation Authority.
Andrew Lindley holds a current practising certificate as a solicitor of England and Wales. He does not provide legal advice as a solicitor, either as part of gamblingconsultant.io or in any other guise, and does not intend to. Nothing on this website, and no service provided through it, is legal advice.
The one exception is an interim appointment. Andrew can join a client business as an interim employee and, in that role, give legal advice as its in-house counsel in the usual way, as an employee of that business, for the duration of the appointment. That advice is given by Andrew as the business's employee, not by gamblingconsultant.io.
Planning a crypto payments or treasury deployment?
Tell me where you are and what you need. A first conversation is free and confidential.
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