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DoubleCheck® by Walrus Security

Stop wire fraud with verified payment instructions.

DoubleCheck verifies wire transfer instructions so your team never sends a payment to fraudsters.

Illustration of a single LP distribution request fanning out to four payees, three marked Verified and one Pending

Trusted by some of the best companies in investment management, real estate, and fund administration

Crescent NewView Capital AngelList Venture 137 Ventures 5AM Ventures Sydecar Hilltop Residential Founders Circle Capital
The problem

You can't trust payment instructions received in emails and phone calls.

Fraudsters rely on these easy targets to steal funds.

01
Lookalike domains

acme.com and acrne.com are easy to mix up at a glance, especially when you're moving fast through an inbox. Standard checks like DKIM don't catch this.

02
Secure email failure

When a fraudster controls email, phishing protection doesn't matter. Every message looks authentic so fraudulent instructions land in your inbox.

03
SIM swapping

Callbacks rely on a phone number. Fraudsters can socially engineer carriers into routing your counterparty's number to their own device.

04
AI voice & video deepfakes

A short public clip is enough to clone a voice convincingly. Fraudsters turn your "trusted" callback or video verification into the weakest link.

The solution

DoubleCheck turns unverified banking information into guaranteed payment instructions.

Here's how we guarantee you're paying the right entity.

1
2
3
Illustration of a payment request being sent to Nadia Kessler of Kessler Capital for an LP Distribution matter
Step 1 · Request

Request payment instructions in seconds.

Start a verification request for any new or existing counterparty. There's nothing for them to install or set up in advance. Send one request, or hundreds at once.

Illustration of a counterparty's bank and account details ready to submit, with no login or photo ID required
Step 2 · Respond

Your counterparty responds with no login required.

They complete DoubleCheck's verification at their convenience in under 2 minutes. No photo ID, no account, no security questions to remember.

Illustration of a verified request marked Guaranteed, with the loss covered in writing
Step 3 · Guarantee

Get guaranteed instructions, ready to release.

DoubleCheck verifies payment instructions and delivers them to you with a guarantee: If you suffer a loss from DoubleCheck's instructions, we'll cover it.

Why teams switch

Built around how your team actually works.

DoubleCheck improves the day-to-day life of finance and operations teams.

Benefit 01: Availability

No more 2am phone calls to confirm a wire.

Funds move across time zones. Verifying by phone means someone is always trying to catch someone else awake, which turns a two-minute confirmation into a multi-day delay. DoubleCheck's verification runs asynchronously: your counterparty completes it whenever it's convenient for them, day or night, and you get the guaranteed payment instructions once complete. There's nothing to schedule and no call to wait on.

  • Verification is asynchronous, convenient to both parties
  • Takes the average respondent under two minutes
  • Your team is only notified when a result is ready
  • No calendar coordination, phone tag, or late night alarms
Illustration of counterparties in New York, Singapore, London, and Sydney verifying at their own local time, three complete and one in progress
Benefit 02: Scale

Turn hundreds of callbacks into one batch request.

Your LP distributions and vendor payment runs often involve dozens or hundreds of counterparties, all around the same time. The manual playbook means an equal number of phone calls, each one scheduled, logged, and repeated by someone on your team. DoubleCheck replaces that with a single request that fans out to every counterparty at once. Each person verifies independently, at their own pace, and your team reviews one guaranteed result per payment instead of running a call center.

  • Send one request or hundreds in a single batch
  • Counterparties verify independently with no call scheduling
  • Every verification is logged automatically
  • Frees your operations team for higher-value work
Illustration of a single request fanning out into a grid of dozens of verified counterparties, 21 of 30 verified
Benefit 03: Reputation

Build trust and confidence in your brand with every distribution.

How you ask for payment instructions says a lot about your brand. Asking an LP or vendor to show a driver's license over video, or answer a security question they can barely remember, feels invasive. DoubleCheck's verification is fast, professional, and unmistakably respectful of the other side's time. It's a seamless experience that builds lasting trust and confidence in your brand.

  • A polished experience, not a security interrogation
  • No photo ID, logins, or security questions required
  • Backed by a guarantee, so your diligence is visible
  • The same trustworthy experience, deal after deal
Illustration of a request sent by a firm and verified by its counterparty in 1 minute 48 seconds, with no login, photo ID, or security questions required, backed by a guarantee

DoubleCheck guarantees the authenticity of the wire instructions you receive.

If DoubleCheck gives you compromised information, we cover it. That's how confident we are in the verification behind it.

Clients

Trusted by teams handling their highest-stakes payments.

"Doublecheck is a super valuable partner to us and the simplicity by which we can solve one of the highest risk areas in fund administration is so friggin helpful."
Operations Manager, Fund Administrator
More Information

Frequently asked questions.

What if my counterparty's email is already compromised?

DoubleCheck doesn't rely on trusting the email itself. It independently authenticates the counterparty's instructions, so a compromised inbox can't be used to produce verified instructions.

Does my counterparty need to create an account or download anything?

No. There's no onboarding, no login, and nothing to install. The entire process runs in-browser, and your counterparty typically completes it in under 2 minutes.

What happens if DoubleCheck gets it wrong?

You're covered. DoubleCheck is guaranteed against loss if we deliver compromised instructions. And since your counterparty typically completes verification in under 2 minutes, that protection never slows your process down.

Can I use DoubleCheck for more than wires?

Yes. Clients use DoubleCheck to verify not only wires, but also ACH, SWIFT, and stock transfers under the same guarantee.

How is this different from a bank-verification database?

Database lookups can't confirm 30–40% of accounts. DoubleCheck's verification is purpose-built and doesn't depend on any single fallible signal.

Can I use DoubleCheck to verify international payments?

Yes! Our clients routinely use DoubleCheck to verify international payments. It works all over the world.

From the blog

Latest news.

We cover the threat landscape and security issues impacting fund, real estate, and corporate treasury payments.

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Get verified instructions for funds transfers. Guaranteed.

See how DoubleCheck fits into your existing payment process, and get your questions answered.

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