
Digital wallets have transformed how financial institutions serve their customers, but that convenience comes with growing exposure to fraud. Bespot Gatekeeper is a fraud detection platform built also for banks and financial services providers, delivering real-time risk scoring, device intelligence, and behavioral biometrics to stop wallet fraud before it causes damage.

A digital wallet is a technology that securely stores users’ payment credentials, such as card details, bank accounts, or prepaid balances, and enables fast, frictionless transactions across mobile apps, web platforms, and in-store payments. Instead of completing raw card data, wallets often rely on tokenization, replacing sensitive information with encrypted tokens. Authentication methods such as biometrics, one-time passwords, or device-based verification are used to authorize transactions.
However, this convenience introduces complexity: multiple devices, instant provisioning, and invisible authentication layers create new attack surfaces that fraudsters actively exploit.
Account Takeover & Wallet Hijacking
Stolen Cards Linked to Wallets
Fraudsters no longer need physical access to a card. They need only a compromised set of credentials, and within seconds they can link a stolen bank card to their own digital wallet and begin spending, bypassing every traditional fraud control in place.
Digital wallets, including those integrated into mobile banking apps, payment platforms, and contactless services, have become the preferred attack vector for financial criminals. Unlike traditional card fraud, digital wallet fraud is instant, anonymous, and difficult to reverse. Once funds are transferred or a fraudulent transaction is authorised, recovery is rarely guaranteed. Banks face not only direct financial losses but also regulatory check, chargeback responsibility, and severe reputational damage when customers lose trust in their institution’s ability to protect their money.
The threat landscape is accelerating. Criminals exploit weak onboarding checks to link stolen cards to new wallet accounts, use social engineering to extract one-time passwords from victims, and employ automated tools to test thousands of compromised credentials at the same time. Traditional rules-based fraud systems were not designed for this environment, and the gap is costing banks millions.
Bespot Gatekeeper: Your Fraud Platform for Financial Institutions
At the core of Gatekeeper is a SaaS platform that combines supervised fraud models trained on verified banking transaction data with anomaly detection that identifies attack patterns. This means the platform catches both well-known fraud typologies, credential stuffing, synthetic identity attacks, card hijacking, and emerging methods that have never appeared in training data before.
Gatekeeper integrates directly with your core banking infrastructure, mobile banking APIs, and third-party wallet providers via a lightweight SDK. Financial institutions can live in days, with full audit trails, explainable decisions, and configurable response rules built in from day one.
Fraudsters gain unauthorised access to a user’s digital wallet by exploiting stolen credentials, phishing attacks, or credential stuffing. Once inside, they can transfer funds, make payments, or link new financial instruments. Because wallets often allow instant transactions, attackers can drain accounts within minutes before detection occurs.
Attackers add stolen or leaked card details into a digital wallet by bypassing weak verification processes. Once tokenized, these cards appear legitimate within the wallet ecosystem, allowing fraudsters to make purchases without triggering traditional card fraud detection systems.
Fraudsters create fake identities by combining real and fabricated information to open new wallet accounts. These accounts are then used to add stolen cards, launder money, or execute fraudulent transactions at scale, making detection particularly difficult.
Users are tricked into revealing authentication codes, passwords, or approving fraudulent wallet actions. This often involves fake identities of trusted entities, such as banks or payment providers, to manipulate users into granting access or authorizing transactions.
Fraudsters use tools to mimic legitimate devices or environments, allowing them to bypass device-based security checks. By masking their true device identity, they can appear as trusted users even when operating from high-risk locations or automated scripts.
Automated bots are used to test stolen credentials, attempt mass logins, or rapidly add multiple cards to wallets. These attacks operate at scale and speed, overwhelming traditional systems that rely on manual review or static rules.
Fraudsters use digital wallets to move illegal funds through multiple accounts or transactions, making them harder to trace. This often involves small, frequent transfers designed to avoid detection thresholds.
Attackers take control of a victim’s phone number by convincing telecom providers to transfer it to a new SIM card. This allows them to intercept one-time passwords (OTPs) and bypass two-factor authentication, gaining full access to the digital wallet.
Adaptive authentication ensures that the majority of genuine customers experience no additional friction. Step-up verification is triggered only when the risk profile genuinely warrants it.
API-first architecture enables most financial institutions to go live within days to weeks, with no infrastructure overhaul, no extended implementation timeline, and no disruption to existing customer journeys.
Banks that demonstrably protect their customers from fraud retain more of them. Gatekeeper turns fraud prevention from a cost centre into a driver of loyalty, satisfaction, and long-term revenue.
Mobile wallet fraud happens when fraudsters take over your digital wallet account. Another scenario is that fraudsters use mobile wallets to pay with stolen credit card numbers, which is hard to detect for online merchants.
Digital wallet fraud operates at much higher speed and scale, often involving automated attacks and identity compromise rather than single transaction abuse.
They exploit weak verification processes, using stolen card data and compromised identities to pass onboarding checks and tokenize fraudulent cards.
Gatekeeper is delivered as an API-integrated platform that connects to your existing core banking systems, mobile banking application, and payment processing infrastructure. For most financial institutions, a standard integration can be completed in two to four weeks, with a sandbox testing period included before go-live. Bespot provides dedicated technical and fraud expertise throughout implementation and ongoing operation. There is no requirement to replace existing systems, Gatekeeper layers over your current infrastructure.

Our offices in Athens, Greece:
Voutadon 28, Athina 118 54