Identity Verification (IDV): What It Is and How to Choose the Right Approach
Identity theft is surging, with global fraud costs projected to leap from $23 billion in 2025 to $58.3 billion by 2030. When fraudsters impersonate victims to hijack credit or drain accounts, the fallout is devastating.
For businesses facilitating digital transactions or account openings, every interaction is a promise that the user is who they claim to be. Identity Verification (IDV) is the essential tool for keeping that promise at scale, especially in the modern era defined by remote onboarding, automated attacks, and strict regulatory obligations.
In this guide, we will help you understand IDV: what it is, what typically happens during verification, the available methods, and the factors to consider when comparing solutions or designing your own flow.
What Is Identity Verification and Why Does It Matter?
Identity verification (IDV) is the process of ensuring that a person is who they claim to be. In the physical world, this is a person or an authority that checks your ID. In the digital world, it’s a multi-layered process that links a “real-world” identity to a digital presence.
Put simply, IDV’s job is to let the “good guys” in as smoothly and quickly as possible, while blocking entry for the “bad guys”.
And since a big part of our lives today takes place online, digital identity verification has become the centerpiece of the modern tech stack for many organizations – both private and governmental. We’ve moved from “trust everyone until they prove otherwise” to a “verify first” environment.
This shift is driven by three main reasons:
- Quick digital onboarding. Customers now expect to open bank accounts, sign contracts, and access services in minutes, not days.
- Sophisticated fraud. From synthetic identity theft to deepfakes, the methods used to spoof identities are evolving. Basic email or SMS verification is no longer enough to protect a business from fraudsters.
- Global regulations. As money moves faster across borders, governments require businesses to know exactly who they are dealing with to prevent illicit activity.
Digital IDV may take different forms. Sometimes it looks like scanning an ID or taking a selfie, sometimes it’s a video session with an agent, and sometimes it’s a digital identity system that lets a user share verified attributes. The IDV flow may look different, but the purpose of it stays the same: establish enough proof that a user is legit to proceed.
To sum up, digital identity verification uses cutting-edge technology, such as machine learning and AI, to confirm who people are with the aim to minimize fraud risk and prevent financial crimes such as money laundering and identity theft.
“Trust matters a lot in business. Yet, online businesses today don’t have the advantage of face-to-face interaction, so identity verification becomes the first moment of trust between a company and its customer. Modern identity verification makes it possible to welcome genuine users in mere seconds while filtering out fraudsters before they cause damage,” CEO of Ondato, Liudas Kanapienis
Identity Verification in KYC and AML Compliance
While IDV is an anti-fraud security tool, it is also the engine behind two major regulatory frameworks: Know Your Customer (KYC) and Anti-Money Laundering (AML).
- KYC is the specific process of a business identifying and verifying the identity of its clients. And IDV is the primary mechanism used to fulfill KYC requirements during onboarding.
- AML refers to the broader set of laws and regulations intended to stop criminals from disguising illegally obtained funds as legitimate income.
Regulators interpret the link between IDV and KYC/AML directly. In the EU, anti-money laundering rules connect Customer Due Diligence (CDD) to identifying and verifying clients when entering a business relationship. In the US, the Customer Identification Program (CIP) rule requires banks to have risk-based procedures that enable a reasonable belief they know the customer’s true identity.
But, IDV isn’t the whole KYC/AML picture; it’s rather the “front door”. From there, depending on the jurisdiction and business mode, organizations may add additional controls, such as:
- Ongoing monitoring,
- Risk assessment,
- Sanctions screening and watchlists checks,
- Politically Exposed Persons (PEP) lists,
- Adverse media checks,
- Enhanced Due Diligence (EDD).
Put simply: IDV provides the data and assurance needed to satisfy both KYC and AML. It ensures you aren’t just verifying a name, but also checking that the person behind the name isn’t on a sanctions list or involved in financial crimes.
Reasons Why Identity Verification Is Important
Beyond just helping organizations follow the AML regulators’ rules, a strong IDV strategy serves as a multi-purpose tool for business growth and stability. Yet, the true value of IDV shows up in its outcomes – fewer bad actors getting through, fewer good users getting blocked, and fewer “surprises” later in the customer lifecycle.
Here are the key reasons for why you need identity verification:
Prevention of Fraud and Financial Crime
Identity fraud is expensive. Whether it’s account takeover or the creation of fake accounts for money laundering, every breach carries a heavy financial and reputational price tag.
Back in 2024, American adults lost $47 billion to identity fraud and scams – a $4 billion increase over the previous year – with 18 million people falling victim to traditional identity fraud alone. And in just the first nine months of 2025, reported identity theft cases have already surpassed the totals for the entire previous year, putting 2025 on track to be the costliest year on record.
IDV is particularly helpful in reducing onboarding fraud, like fake documents, stolen identities, synthetic identities, and deepfakes, and can make it harder to create accounts for scams, mule activity, or repeated abuse.
Moreover, there is a regulatory requirement that demands organizations to evaluate the risks of the identity proofing options they offer and apply mitigating fraud controls accordingly.
Enhancing User Access and Inclusion
An IDV flow that only works for one country, one document type, or one “ideal user” is a significant handicap – especially if you’re working with the global market. Digital-first identity verification methods allow businesses to reach customers in remote areas and those who may not have easy access to physical branches, thus effectively expanding their customer base.
For example, the US National Institute of Standards and Technology (NIST) recommends offering multiple identity evidence types, multiple verification methods, and exception-handling mechanisms to expand access for people with different capabilities and circumstances. That’s why inclusive and trusted identity verification systems are widely seen as enablers of access to services.
Improving Onboarding and UX
High friction is the enemy of conversion. If your identity verification process is clunky, users will abandon it. That’s why you need a well-optimized IDV flow that uses automation to provide a “near-instant” experience, turning a mandatory security check into a seamless part of the brand experience.
Clear IDV instructions, realistic expectations, and helpful fallbacks are all parts of your product experience. What you need are practical steps for customer experience, such as explaining what will happen, offering step-by-step tutorials, and providing support options.
Staying Compliant with Regulations
Regulatory fines are at an all-time high. In 2025, the US Department of Justice imposed a $504 million penaltyagainst OKX (Aux Cayes FinTech) for operating without proper AML/KYC controls and facilitating over $5 billion in suspicious transactions.
To stay compliant and avoid massive fines, you need to implement a standardized, automated IDV process that consistently meets local and international regulations, such as the GDPR or the 6AMLD, as well as reduces the risk of human error in manual checks.
“As more services move online, fraudsters are inventing new ways to scam companies and individuals. That’s why identity verification is a critical defense layer that can protect your business from serious financial loss and reputational damage,” Chief Growth Officer of Ondato, Rimantas Radzevičius
How Does the Identity Verification Process Work?
When you’re evaluating IDV solutions, it’s best to look at the process as a journey. While the backend technology may be complex, the process’s logic should be straightforward for both the business and the end user.
Despite differences in the UI, most IDV journeys tend to follow the same underlying logic: collect evidence, check it, link it to the person, and make a risk decision:
- Resolution – Collect enough evidence and attributes to establish a unique real-world identity.
- Validation – Confirm the authenticity and accuracy of the evidence and attributes.
- Verification – Confirm that the applicant presenting the evidence is the same person to whom it was issued.
Identity Verification Process
A high-level identity verification onboarding process usually only takes up to 60 seconds and looks this way:
- Data collection: The user submits their information, like their name, date of birth, ID document photos, or a selfie.
- Document validation: The system checks the document for authenticity. Is it a real ID? Has it been tampered with? Are the security features, like holograms or MRZ codes, present?
- Biometric comparison: When a user takes a selfie, the system uses facial recognition to match the “live” person to the photo on the ID document.
- Liveness detection: A critical step to ensure the person is actually present and not using a photo or wearing a mask. This is done to prevent spoofing.
- Database cross-referencing: The data is checked against external sources, such as government registries, PEP lists, or sanctions lists.
- Decision: The system provides a “Pass”, “Fail”, “Resubmit”, or “Assign a manual check” result, allowing the business to automate the next step of the onboarding flow.
NOTE: The customer is typically asked to provide their ID only during the onboarding process unless the document has expired. However, their identity should be verified several times during the customer lifecycle. Meanwhile, authentication may be necessary each time a customer returns to the platform.
For any business, the main goal is to find an onboarding process that balances accuracy (not letting fraudsters through) with speed (not making the customer wait).
“Modern identity verification is powered by AI, biometrics, and advanced document authentication that work together in real time. All these technologies allow businesses to connect a digital interaction with a verified real-world identity within seconds. That’s why for companies that operate online, IDV has become an indispensable part of the tech stack, because it can help them achieve secure, global growth,” CTO of Ondato, Gediminas Letulis
Key Technologies and Methods Used in Identity Verification
When deciding on an identity verification solution, it’s important to understand that the point of IDV technology isn’t in acquiring a rich collection of fancy features and functions, but rather what each functionality can help you be confident about.
Depending on your risk level, you might choose one or a combination of the following identity verification methods and technologies:
Document-Based Verification
This is the standard approach that uses AI and OCR (Optical Character Recognition) to read and verify physical IDs.
Strengths:
- Widely accepted standard for KYC
- Works remotely and quickly
- Supports many ID types globally
- Can be automated
Limitations:
- Susceptible to high-quality fake or stolen documents
- Image quality or lighting issues can cause failures
- May require additional checks (biometrics or database)
Best for: Digital onboarding/online identity verification for financial institutions: FinTechs, banks, crypto platforms, marketplaces.
Biometric Verification and Liveness Detection
Confirms identity by matching a user’s face or other biometrics to their ID and verifying that the person is physically present (not a photo/video spoof).
Strengths:
- High level of assurance
- Strong fraud protection
- Prevents spoofing via liveness checks
- Fast and convenient for users
Limitations:
- Requires camera access and good lighting
- Some users may have privacy concerns
- Accuracy can vary across devices
Best for: High-risk onboarding, financial services, digital wallets, regulated platforms.
Video-Based Identification
A real-time or recorded video session where a user presents their ID and interacts with an agent or automated system for verification.
Strengths:
- Very high verification assurance
- Difficult for fraudsters to bypass
- Often accepted by regulators in strict KYC environments
Limitations:
- Slower and more resource-intensive
- Requires stable internet and camera
- Higher operational cost
Best for: Banks, regulated financial institutions, jurisdictions requiring video KYC.
NFC (Near Field Communication) Verification
NFC reads the secure chip inside biometric passports or eIDs using a smartphone to confirm authenticity and extract verified identity data.
Strengths:
- Highly secure and tamper-resistant
- Direct access to government-issued chip data
- Very high confidence level
Limitations:
- Requires NFC-enabled devices
- Only works with chipped IDs
- Not universally supported by all users
Best for: High-security onboarding, digital identity wallets, advanced KYC.
Database/Registry Checks
Confirms identity information against trusted databases, such as government records, credit bureaus, telecom registries, etc.
Strengths:
- Fast and frictionless for users
- No camera or document upload needed
- Useful for background validation
Limitations:
- Coverage varies by country
- Databases may be outdated or incomplete
- Usually insufficient alone for high-risk verification
Best for: Supplemental verification, enhanced due diligence processes, fraud screening, returning users.
NOTE: Most identity verification systems combine several of these methods. For example, a typical digital onboarding flow may include document verification + biometric and liveness detection, with database checks or OTP used as supporting steps to improve confidence and reduce fraud.
Here is a practical overview of key decision-making factors that businesses often evaluate when selecting an identity verification approach:
| Identity verification method | Assurance level (security strength) | User friction | Onboarding speed | Typical role in the IDV flow |
|---|---|---|---|---|
| Document-Based Verification | Medium–High | Medium | Fast (usually under 1 minute if automated) | Core identity verification step in many digital onboarding flows |
| Biometric Verification + Liveness Detection | High | Low–Medium | Very fast (seconds) | Confirms the person presenting the ID is physically present and matches the document |
| Video-Based Identification | Very high | High | Slow (several minutes) | Used when regulations require strong human-assisted verification or in high-risk cases |
| OTP (One-Time Password) | Low | Very low | Instant | Typically used as a secondary authentication or device verification step |
| NFC Verification | Very high | Medium | Fast (seconds) | Confirms authenticity of e-passports or chipped IDs by reading secure chip data |
| Database / Registry Checks | Low–Medium (varies by data source) | Very low | Instant | Often used as an additional validation layer or for passive identity confirmation |
How to Choose the Right Identity Verification Approach
Of course, what IDV approach is best for you depends on your business. If you make your IDV process too easy, you may invite fraud. If you make it too hard, you may lose customers. One thing is clear, though: a strong approach is the one that matches your risk, supports legitimate users, and gives you defensible controls.
To find your “Goldilocks zone”, it’s a good idea to evaluate these factors:
Your regulatory environment
Are you a regulated financial institution or a peer-to-peer marketplace? If you are in FinTech, your IDV needs to be KYC-compliant, often requiring document verification plus biometric checks. If you are a marketplace, a simpler email or phone verification might suffice for low-risk transactions.
Your required assurance
How costly is a wrong decision when identifying someone’s identity? For high-risk services, you typically need stronger evidence and stronger identity linking. For example, NIST’s identity proofing guidance expects providers to evaluate risks and apply fraud controls across the proofing options they offer. Choose stronger methods such as document verification combined with biometric verification + liveness detection or NFC verification, and add video-based identification where very high assurance is required.
Risk vs. friction
Every step you add to the verification process, for example: “please take a video of yourself turning your head”, increases security but also increases friction for the user. So, if you’re high-value/high-risk, it’s best to prioritize security, and opt for biometrics + NFC. If your business is low-value/high-volume, then it’s best to prioritize speed, and go for auto-OCR + database checks.
Your customer journey model
What’s your journey model: unattended, attended, or tiered? Many businesses start with a low-friction unattended flow, using document verification + biometric verification with liveness detection, reserving attended verification: video identification or NFC verification for higher-risk actions or suspicious signals.
Automation vs. manual review
A 100% automated system is fast, but it might flag false negatives for blurry photos. A hybrid approach, where AI handles 95% of cases and a human expert reviews the edge cases, is often the best way to maintain high conversion rates without sacrificing security.
Your geographical coverage
Does your business plan to scale internationally? If so, you need a solution that can recognize thousands of different document types from hundreds of countries and handle various alphabets (Latin, Cyrillic, Arabic, etc.).
Integration and scalability
How will IDV fit into your current tech stack? Look for “orchestration” capabilities: i.e., the ability to easily switch different verification methods on or off as your business grows or enters new markets without needing a complete technical overhaul.
Operations
Before you choose a method that looks great in a demo, think through where IDV sits in your product, which channels you need (web, mobile web, native app), how you’ll handle retries, and what your manual review and support processes will look like.
After you’ve analyzed all of these factors, you’re ready for meaningful comparisons. You can also compare IDV approaches by using such business metrics as completion rate, time-to-verify, manual review rate, false rejects/false accepts, and post-onboarding fraud outcomes.
Who Uses Identity Verification and Why?
IDV has become mandatory across various business sectors and industries that must ensure their clients are actual people before doing business with them.
- Financial services and fintech use IDV to meet customer due diligence expectations and reduce onboarding fraud.
- Crypto and other higher-risk financial platforms often use IDV to manage elevated fraud and AML exposure in remote onboarding contexts, where traditional in-person checks don’t apply.
- Marketplaces and sharing-economy platforms use IDV to reduce impersonation and improve trust between strangers.
- Telecommunications may use IDV to reduce account fraud and SIM-swap driven abuse, where phone numbers become a gateway for other accounts.
- Gaming and gambling commonly need IDV for age gating; for example, UK online gambling rules require age and identity checks before gambling.
- Healthcare, education, and public-sector services may use IDV to protect access to sensitive records and benefits.
The Final Word
Identity verification is the bridge between a stranger and a trusted customer. As you move from understanding the “what” to deciding on the “how”, remember that the best IDV approach is the one that feels invisible to the honest user while remaining a brick wall for the fraudster.
By focusing on your specific risk profile, regulatory needs, and user experience goals, you can choose a verification strategy that doesn’t just protect your business but also helps it grow.
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