CISO Tribune

Vendor comparison · 2 companies

Overwatch vs Sardine

Overwatch sells a system that runs cyber, fraud, brand and merchant risk, with AI agents handling collection and the first pass of every investigation. Sardine sells a platform that unifies fraud prevention, AML compliance, and real-time transaction monitoring in one place. CISO Tribune files both under Fraud prevention. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Overwatch
  • Sardine
Overwatch vs Sardine: Products, Customers and Funding Compared
OverwatchOverwatch sells a system that runs cyber, fraud, brand and merchant risk, with AI agents handling collection and the first pass of every investigation.overwatchdata.aiSardineSardine sells a platform that unifies fraud prevention, AML compliance, and real-time transaction monitoring in one place.sardine.ai
What it sells
  • Investigations[6]AI agents take each signal to an evidence package, and analysts take the cases that need judgment.
  • Sardine Fraud PreventionDetects payment fraud in real time using device intelligence, behavioral biometrics and transaction monitoring.
  • Sardine OnboardingAutomates identity verification, business verification and credit underwriting for new customers.
  • Sardine AML ComplianceAutomates transaction monitoring, customer risk rating and sanctions screening for financial crime teams.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pages2020[2]
Ownership and funding
Not stated on its pagesPrivately held[3][4]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • October 19, 2026Overwatch Data announced a $15 million Series A led by Mouro Capital, with Visa Ventures and Capital One Ventures participating.[11]
  • July 2, 2026Infinite and Sardine announced a two-way integration combining Sardine's fraud and risk intelligence with Infinite's compliance platform and account infrastructure.[8]
  • April 29, 2026Sardine announced a partnership with Modulr to supply integrated fraud and anti-money laundering solutions.[7]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 4, 2026[4]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Overwatch sells mainly to cyber, fraud and risk teams. Overwatch describes card networks and acquirers as vetting portfolios of merchant descriptors for transaction laundering, prohibited content and shell storefronts. Overwatch names customers in finance, fintech and media. For executive protection, Overwatch says alerts go to whoever the customer nominates, which in most deployments is corporate security. Overwatch says it turns its understanding of the criminal underground into investigations and risk decisions for fraud and security teams.From its own pages, Sardine sells mainly to banks, fintechs, marketplaces, and merchants. Sardine describes its fraud detection as built for financial institutions and merchants. Sardine describes its AML agents as helping AML teams move faster from review to resolution. Sardine describes a capability that monitors and enforces risk controls across fintech programs.
Last verified
October 26, 2026September 27, 2026

Where they overlap

  • Overwatch and Sardine are both filed under Fraud prevention.

Where they differ, field by field

  • Overwatch's primary category is Threat intelligence; Sardine's is Fraud prevention.
  • Overwatch is also filed under Digital risk protection. Sardine is also filed under Identity verification.
  • Overwatch lists Investigations. Sardine lists Sardine Fraud Prevention, Sardine Onboarding and Sardine AML Compliance.
  • Sardine was founded in 2020.
  • Sardine is privately held.

What it sells: Overwatch

What Investigations does[6]
Overwatch agents follow the actor, resolve connected infrastructure, pair exposed data with breach records and check what has been seen before. Findings can be assigned to individuals, given a status and commented on from first signal to close. Sources consulted, evidence found, connected entities and a verdict are attached to every finding.

Questions about Overwatch and Sardine

What do Overwatch and Sardine sell?
Overwatch sells Investigations. Sardine sells Sardine Fraud Prevention, Sardine Onboarding and Sardine AML Compliance.
Are Overwatch and Sardine in the same category?
They share Fraud prevention. Overwatch's primary category is Threat intelligence and Sardine's is Fraud prevention.
When were Overwatch and Sardine founded?
Sardine was founded in 2020.
Who owns Overwatch and Sardine?
Sardine is privately held.
Who are Overwatch and Sardine sold to?
From its own pages, Overwatch sells mainly to cyber, fraud and risk teams. From its own pages, Sardine sells mainly to banks, fintechs, marketplaces, and merchants.
What have Overwatch and Sardine announced recently?
October 19, 2026: Overwatch Data announced a $15 million Series A led by Mouro Capital, with Visa Ventures and Capital One Ventures participating. July 2, 2026: Infinite and Sardine announced a two-way integration combining Sardine's fraud and risk intelligence with Infinite's compliance platform and account infrastructure.

About Overwatch

Overwatch sells a system that runs cyber, fraud, brand and merchant risk, with AI agents handling collection and the first pass of every investigation. Overwatch sells AI-native threat intelligence and risk operations for cyber, fraud and risk teams. Overwatch says threats arrive from every direction, including compromised accounts, fraud patterns and fake merchant applications.[1][2][3]

Overwatch collects continuously across the criminal underground, markets, leak sites, forums and channels where fraudsters and threat actors stage. Overwatch uses classifiers and anomaly detection to turn a constant stream of raw activity into candidate signal. Overwatch collection runs continuously across underground forums, marketplaces, leak sites and messaging channels, including non-English communities. Overwatch agents follow the actor, resolve connected infrastructure, pair exposed data with breach records and check what has been seen before. Overwatch attaches sources consulted, evidence found, connected entities and a verdict to every finding.[1][3][5][6]

Overwatch analysts work the hard cases by hand, including leads found through human collection where stolen data and access are sold. Overwatch analysts take the hard cases and teach the agents what to look for next. Overwatch delivers validated findings into SIEM, SOAR, case management and executive briefings. Overwatch findings can be assigned to individuals, given a status and commented on for each case from first signal to close. Overwatch delivers email and SMS alerts, Slack, API, and SIEM and case management integrations. Overwatch offers monitoring mapped to a customer's assets, vendors and business units, with automated alerts tuned to priorities.[1][2][3][4][5][6]

Overwatch cyber threat intelligence covers dark web markets, ransomware leak sites and vulnerability chatter. Overwatch offers automated merchant review and KYB, including fraud review and card network compliance checks. Overwatch brand protection addresses impersonation, lookalike domains and spoofed storefronts aimed at a brand, with takedown signals routed to the right team. Overwatch addresses threats against executives and VIPs that cross into the physical world, including risks tied to events and facilities. Overwatch offers continuous monitoring for vendor and supply chain compromise.[4]

Overwatch collects the tools, methods and stolen data circulating in fraud channels and works out which of it points at the customer. Overwatch fraud collection includes image-based material such as receipts, balance screenshots and phishing kits. Overwatch agents verify listings against issuer records, map seller aliases across channels and pair compromised data with the customer base. Overwatch routes fraud findings to fraud operations with the evidence attached, including card reissue lists and prioritized actions. Overwatch brand protection watches newly registered domains, app stores, social platforms and the channels where scam kits are traded. Overwatch agents confirm the impersonation, trace hosting and registration, capture evidence and assess reach. Overwatch assembles the evidence package and routes it to a takedown provider where a customer uses one. Overwatch monitors for threats against executives, board members and public figures, including exposed personal data, coordinated harassment and threats tied to an event, a facility or a trip. Overwatch routes executive escalations with evidence attached to corporate security, the protective detail or law enforcement. Overwatch collection covers channels it has legitimate access to, including invite-based fraud and harassment channels.[4][7][8]

Overwatch describes card networks and acquirers as facing portfolios of merchant descriptors to vet for transaction laundering, prohibited content and shell storefronts. Overwatch merchant agents inspect the merchant and its policy pages, examine hosting and registration signals, trace the checkout and payment flow, pull external reputation, and output a risk verdict. Overwatch merchant risk returns a written verdict with risk indicators and confidence into the review queue or via API. Overwatch merchant reviews map to a customer's categories and MCC structure.[10]

Overwatch is the system Arjun Bisen and Zara Perumal wanted after careers at Stripe, Google and Twitter. Overwatch has raised a $15 million Series A, led by Mouro Capital with Visa Ventures and Capital One Ventures. Overwatch says the funding lets it extend its agents across more of the risk lifecycle, from monitoring and investigations in the criminal underground to merchant onboarding and due diligence. Overwatch names Visa among its customers, alongside 40+ others in finance, fintech and media.[2][3][4][5][6]

Overwatch on the record

Sources

Overwatch full record

  1. [1]overwatchdata.aiOverwatch · overwatchdata.ai · undated page, accessed October 26, 2026 · Tier A
  2. [2]About Overwatch Data: founders, team & missionOverwatch · undated page, accessed November 10, 2026 · Tier A
  3. [3]AI-native threat intelligence & risk operations | Overwatch DataOverwatch · undated page, accessed November 10, 2026 · Tier A
  4. [4]AI threat intelligence platform | Overwatch DataOverwatch · undated page, accessed November 10, 2026 · Tier A
  5. [5]Cyber threat intelligence | Overwatch DataOverwatch · undated page, accessed November 10, 2026 · Tier A
  6. [6]AI agents for investigations | Overwatch DataOverwatch · undated page, accessed November 10, 2026 · Tier A
  7. [7]Fraud intelligence | Overwatch DataOverwatch · undated page, accessed November 10, 2026 · Tier A
  8. [8]Brand protection | Overwatch DataOverwatch · undated page, accessed November 10, 2026 · Tier A
  9. [9]VIP & executive protection | Overwatch DataOverwatch · undated page, accessed November 10, 2026 · Tier A
  10. [10]Merchant risk & KYB automation | Overwatch DataOverwatch · undated page, accessed November 10, 2026 · Tier A
  11. [11]We raised $15 million to help risk teams keep pace with AI-scale attacks | Overwatch DataOverwatch Data · published October 19, 2026 · Tier A

Sardine full record

  1. [1]sardine.aiSardine · sardine.ai · undated page, accessed September 27, 2026 · Tier A
  2. [2]Series c announcementSardine · sardine.ai · published February 11, 2025 · Tier A
  3. [3]Agentic Financial Crime Platform for Fraud Prevention & AMLSardine · undated page, accessed October 28, 2026 · Tier A
  4. [4]Sardine Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 28, 2026 · Tier C
  5. [5]About Us, The Agentic Risk Platform for Financial CrimeSardine · undated page, accessed November 4, 2026 · Tier A
  6. [6]Trust Center - SardineSardineAI Corp. · undated page, accessed November 4, 2026 · Tier A
  7. [7]Sardine partners with Modulr to bring real-time, AI-enabled fraud detection to automated paymentsSardine · published April 29, 2026 · Tier A
  8. [8]Infinite and Sardine Launch Two-Way Integration Linking Compliance, Risk, and PaymentsPR Newswire · published July 2, 2026 · Tier A

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