Walrus Security
Walrus Security builds DoubleCheck, a payment authentication platform that verifies counterparty identities before wire, ACH, and stock transactions, protecting investment funds, fund administrators, fundraising platforms, family offices, and foundations from business email compromise fraud.
- Company typePrivate
- Founded2016
- HeadquartersNew York, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Walrus Security does
Walrus Security, Inc. is a New York-based, privately held company founded by security and cryptography experts Michael Walfish, Max Howald, and Andrew Blumberg. The company develops DoubleCheck®, an authentication platform that verifies the identities of counterparties before wire, ACH, stock, or other push-payment instructions are accepted. DoubleCheck uses multi-factor authentication, video confirmation, and 1st- and 3rd-party data verification, supported by patented and patent-pending technology, to defeat business email compromise (BEC) and other impersonation fraud. A distinguishing feature is a financial guarantee backed by insurance that covers verified transactions up to $10M or more if funds are nevertheless stolen. The platform is sold primarily to investment funds, fund administrators, fundraising platforms, family offices, and foundations representing over $1 trillion in assets, with a stated customer base of security-minded financial-services organizations.
Walrus operates a SaaS subscription model with annual billing under master services agreements, pricing is not publicly disclosed, and distribution combines a self-serve web platform (app.walrusfi.com) with an enterprise sales motion supported by Request Demo and Get Started forms. The company was venture-funded with support from Alchemist Accelerator, Atypical Ventures, and Deciens Capital (lead investor). The platform achieves an average 45-second verification time for counterparties without requiring them to log in. In 2026 the company was designated a Nacha Preferred Partner for Account Validation, Fraud Monitoring, and Risk and Fraud Prevention, and announced a strategic partnership with Hazeltree to embed DoubleCheck-verified payment instructions into treasury workflows serving over $4 trillion in client assets.
The company employs 11-50 people, operates from 250 Broadway in New York City, and reports 15+ years of privacy/security advisory experience, 100+ person-years of systems engineering, and 100+ academic papers among its team. Marketing is content-led through the company website, blog, LinkedIn, and Twitter/X, with credibility reinforced by the Nacha partnership and academic pedigree of the founding team.
Walrus Security firmographics
Firmographics- Name
- Walrus Security
- Legal name
- Walrus Security, Inc.
- Website
- https://walrusfi.com
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Walrus Security builds DoubleCheck, a payment authentication platform that verifies counterparty identities before wire, ACH, and stock transactions, protecting investment funds, fund administrators, fundraising platforms, family offices, and foundations from business email compromise fraud.
- Ownership category
- akta.pro rank
Walrus Security industry classification
Industry- Product category
- Payment Authentication Software
- NAICS
- Financial Transactions Processing, Reserve, and Clearinghouse Activities (522320)
- SIC
- Surety Insurance (6351)
- akta.pro primary industry
- Bot Management & Credential Stuffing Protection (FSAMALAG)
- akta.pro secondary industry
- Identity & Authentication for Open Banking (SCA support, token exchange) (FSAGACAF)
Keywords
Where Walrus Security is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Walrus Security business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- DoubleCheck Subscription Service: SaaS subscription model where Customers contract with Walrus under an Order and Master Services Agreement for access to the DoubleCheck Service. Customers (Payers and Payees) pay subscription fees to use the platform for secure payment instruction exchange. The platform supports both payer and payee use cases.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Enterprise subscription with custom pricing |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
Walrus Security product offering
Product offeringCore offering
Walrus Security develops and sells DoubleCheck®, a SaaS authentication platform that securely and automatically collects and verifies payment instructions for wires, stock, and other payment types. The platform authenticates counterparties using patented multi-factor authentication, video confirmation, and 1st/3rd party data verification before transactions are processed, and backs verified transactions with a financial guarantee to protect against business email compromise (BEC) and other impersonation fraud.
Product overview
Walrus Security offers a single unified product called DoubleCheck®, an authentication platform for payment verification and fraud prevention. The platform enables organizations to collect and verify payment details securely before executing transactions, protecting against business email compromise and other impersonation fraud. DoubleCheck® supports two primary workflows: paying someone (payer requests payee verification) and getting paid (payee sends payment instructions for payer verification). The platform includes a financial guarantee backing verified transactions and targets security-minded funds, fund admins, fundraising platforms, family offices, and foundations.
Differentiator
Problem solved
Functional benefit
Brands
- DoubleCheck®: Authentication platform that enables funds, fund admins, fundraising platforms, and exchanges to collect payment details for wires, stock, and more automatically. Protects against business email compromise (BEC) attacks by verifying counterparty identities before transactions.
Products and services
- DoubleCheck® Authentication platform that enables investment funds, fund administrators, fundraising platforms, family offices, foundations, and exchanges to securely and automatically collect and verify payment details for wires, stock, and other payment types. Uses advanced multi-factor authentication, video confirmation, and first/third-party data verification to authenticate counterparties and verify payment instructions before transactions are executed. Supports both 'pay someone' (payer verifies payee) and 'get paid' (payee sends instructions for payer verification) workflows. Backed by a financial guarantee covering verified transactions up to $10M or more.
Quantifiable outcome
- Covers transactions regardless of size including amounts up to $10M or more
- +1 more outcomes
Companies that use Walrus Security
Customer profileNamed customers5 records
Segments5 records
Ideal customer profiles3 records
Walrus Security technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability1 record
Feature5 records
Walrus Security partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- HazeltreecoreStrategic partnership brings payment instructions from DoubleCheck directly into Hazeltree's treasury and liquidity management capabilities. This allows alternative investment firms to more efficiently collect and use validated payment instructions within their existing treasury workflows. Hazeltree provides cloud-based treasury, liquidity, and portfolio finance solutions to over $4 trillion in client assets globally.
- NachacoreNacha named Walrus Security as a Preferred Partner for Account Validation, Fraud Monitoring, and Risk and Fraud Prevention. The partnership supports Nacha's strategy of advancing the ACH Network through stronger front-end controls against fraudulent transactions. Walrus's DoubleCheck platform verifies ACH payment details and authenticates counterparties before transactions enter the ACH Network, targeting credit-push frauds such as business email compromise.
Scale indicators5 records
Recent moves5 records
Expansion highlights5 records
Walrus Security competitors and assessment
Company assessmentDirect peers
- Effectiv: Effectiv is a fraud and risk decisioning platform that combines identity, transaction, and behavior signals to stop payment and onboarding fraud for fintechs and banks, overlapping with Walrus in counterparty and transaction authentication.
- Eftsure: Eftsure is an Australian-headquartered B2B payment fraud-prevention platform that verifies vendor and payee account details before funds are released, directly addressing BEC and business payments fraud in a comparable way to Walrus's DoubleCheck.
- Trustpair: Trustpair provides automated third-party vendor account validation to prevent wire fraud and BEC at the payment instruction stage, with a strong enterprise focus in Europe — directly comparable to Walrus's counterparty authentication proposition.
Broad incumbents
- TransUnion TruValidate: TransUnion's TruValidate suite combines identity verification, device reputation, and fraud analytics used by financial institutions to authenticate counterparties and assess risk — adjacent to Walrus's authentication value proposition and backed by a major credit bureau.
- Featurespace: Featurespace provides adaptive behavioral analytics for real-time fraud and financial crime detection at banks and payments processors, competing for the same payment fraud budgets as Walrus with a broader enterprise install base.
- Ping Identity: Ping Identity provides enterprise identity and access management, including strong customer authentication and identity verification flows for financial services. It is broader than Walrus but competes for the same authentication budgets in regulated finance.
- Sift: Sift operates a digital trust and safety platform combining identity, device, and behavior signals to prevent fraud across the customer journey, including payment fraud. It is a much larger incumbent serving marketplaces, fintechs, and enterprises.
- Arkose Labs: Arkose Labs offers account takeover, bot, and payment fraud prevention using device, behavior, and challenge-based signals. It overlaps with Walrus in the payment fraud prevention category but serves a broader set of use cases.
- BioCatch: BioCatch is a leading behavioral biometrics fraud detection platform for banks and fintechs, addressing account takeover, social engineering, and payment fraud at scale. It competes for the same buyer budgets as Walrus but with a much broader product suite.
Emerging players
- Abnormal Security: Abnormal Security uses AI to detect and stop business email compromise, account takeover, and vendor email compromise attacks that lead to wire fraud — attacking the same root cause as Walrus (compromised email leading to fraudulent payment instructions) but from the email security layer.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Walrus Security social profiles
Digital presenceWalrus Security financial estimates
Financial estimateRevenue estimate
Valuation estimate
Walrus Security leadership team
Management profileNumber of profiles
Profiles3 records
Walrus Security funding detail
Funding detailFunding overview
Funding rounds1 record
Investors2 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Walrus Security M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Walrus Security
What does Walrus Security do?
Walrus Security develops and sells DoubleCheck®, a SaaS authentication platform that securely and automatically collects and verifies payment instructions for wires, stock, and other payment types. The platform authenticates counterparties using patented multi-factor authentication, video confirmation, and 1st/3rd party data verification before transactions are processed, and backs verified transactions with a financial guarantee to protect against business email compromise (BEC) and other impersonation fraud.
Is Walrus Security a public or private company?
Walrus Security is a private company. It is classified as venture growth investor backed and is currently operating.
When was Walrus Security founded?
Walrus Security was founded in 2016. It employs 11 to 50 people.
Where is Walrus Security based?
Walrus Security is headquartered in New York, United States, in the North America region.
How does Walrus Security make money?
One revenue line is on record: doubleCheck Subscription Service.
Who are Walrus Security's main competitors?
Direct peers on record are Effectiv, Eftsure and Trustpair. Broad incumbents are TransUnion TruValidate, Featurespace, Ping Identity, Sift, Arkose Labs and BioCatch. Abnormal Security is listed as an emerging player.
Does Walrus Security have an API?
No public API is recorded for Walrus Security.
What industry is Walrus Security in?
Walrus Security's product category is Payment Authentication Software. Its primary akta.pro industry code is FSAMALAG, Bot Management & Credential Stuffing Protection, with a secondary code of FSAGACAF, Identity & Authentication for Open Banking (SCA support, token exchange). Its NAICS code is 522320 and its SIC code is 6351.