A digital identity is the collection of data that can be used to identify you as a person, as well as distinct organizations and even devices online. Usernames, email addresses, electronic signatures, certifications, even your purchasing history and email archive are all part of unique datasets that can be used to identify you online. Unsurprisingly, cybercriminals see great value in obtaining this data. Let’s talk about what defines who you are online and how you can keep your digital identity safe.
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What is a digital identity?
A digital identity encompasses all information that you use to prove who you are online. It's a flexible way for users to authenticate themselves, letting them access personal information and services. You need digital identity verification to access services like healthcare, online banking, and e-commerce. The most common type of personal digital identity is an account that uses a unique username-and-password combination.
Despite the name, digital identity should not be confused with digital IDs. The latter are electronic identification documents, also known as eIDs. They are implemented in some countries as a legal identification equivalent of passwords and other documents.
In some exceptional cases, a digital identity can be used for legal identification. It usually doesn't fully replace physical identification documents, but some forms, like digital signatures, can sometimes be accepted as a substitute.
Digital identities can sometimes get mixed up. For instance, another user can set up the same handle as you on a different platform. However, the precise combination of your username, email address, and password ensures the platform can tell you apart from another person.
Your digital identity is not to be confused with your digital footprint. Although some information, like the accounts you create or the photos you share, falls under both, a digital footprint concerns what traces you leave online as you browse. A digital identity is the deliberate representation of who you are online and who the person behind the screen is. For instance, you contribute to your digital footprint when you create a new account, but the name you use for it is a digital identity.
A digital identity can work as a defense mechanism — without passing digital identity verification processes, cybercriminals and unprivileged parties can't access sensitive information. In recent years, the implementation of digital identities has become a security measure to access sensitive and age-restricted content in countries like Australia and the UK.
As a user, you can have multiple digital identities. For instance, your personal digital identity and your identity as an employee can overlap but cover different factors. A personal digital identity helps users securely access their banking information, apply for loans and permits, and sign digital documents.
Individual digital identity information refers to:
Personally identifiable information (PII) like your full legal name, date of birth, and home address.
Biometric data, like your face, fingerprint, or iris ID.
Your digital signature.
Digital credentials like email addresses, PIN codes, usernames, and passwords.
Digitized documents like IDs, driver’s licenses, and visas.
Bank account numbers, loan and insurance information, and credit details.
Purchase history.
Personal digital certificates.
Organizational identity
Digital identities also apply to organizations and devices. These groups have their own unique identifiers. Organizations need digital identity verification to validate their business operations. Devices are tracked using digital identities to authorize software use, recognize them if they’re lost or stolen, and protect data if they get compromised. You can also have unique identifiers for governmental bodies, cloud resources, and software.
Business and governmental digital identity factors include data related to the company as a whole and its individual employees. For organizations, ensuring reliable digital identity verification is essential to adhere to regulations and receive accreditation. It helps maintain privileged access to resources based on employee roles. Similarly, education institutions have digital identity verification for students that can grant access to university or college portals, library services, and academic resources.
Companies and governmental bodies that handle digital identity data of others, like customers or citizens, must prove they follow sufficient security practices. Requirements like NIST, CIS, the GDPR, and HIPAA set the standard for how companies should handle digital identity data.
Organizational digital identity includes:
Company registration numbers and business licenses.
Tax IDs and IBAN.
Domain names.
Employee IDs.
Shared and individual workplace account credentials.
Customer IDs and vendor numbers.
Access tokens.
Regulatory identifiers.
Device and software identity
Digital identities for devices and apps let users and other hardware recognize licensing, validity, and system versions. Devices get assigned identifiers when they’re manufactured, allowing users and companies to reliably trace them back if they’re stolen or compromised. Some identifiers, like IP addresses, are temporary and rotate at set periods. Likewise, each application has a unique certificate or license number.
Hardware and software digital identity covers:
Serial numbers.
IMEI numbers.
MAC addresses.
IP addresses.
Firmware versions.
Wallet addresses.
Device passwords.
Application IDs.
API keys.
Access tokens.
Certificates.
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Why digital identity security matters
A digital identity is like your passport, ID card, or Social Security number, only available online and made up of thousands of little data units. The more accounts you create, services you use, and purchases you make, the larger your digital identity data pool gets. Digital identity protection helps protect your sensitive information from identity theft attempts. So if it becomes compromised, the damage can be widely spread.
Large sets of digital identity data are a valuable target for cybercriminals. According to research into publicly available leaked databases detected by NordStellar between 2023 and 2025, although the number of disclosed data leaks has decreased, these incidents now contain significantly larger quantities of data. Criminals prioritize the quality of data and its usefulness over executing more breaches with less valuable outcomes.
Digital services are increasingly using digital identities like biometrics to allow users to verify their access. Instead of going after individual users, cybercriminals attack service providers directly and steal the data they own. This makes it harder for users to keep their data secure, as they rely on the service provider to protect it.
Individual attacks through social engineering remain an effective way to steal digital identity data. Criminals use credential stuffing, brute force, and phishing attacks to steal and access personally identifiable information. Once they’ve gathered enough data, they can switch to synthetic fraud — a type of identity theft that uses a combination of real and invented information to create false identities and access sensitive resources.
Stolen identity data is frequently used in financial fraud and identity theft. The consequences can range from lost passwords to compromised bank accounts and even being framed for serious crime if your identity is stolen. The more sensitive the information, the more security precautions it needs.
Having a simple username-and-password verification isn’t enough. The most common passwords in the world typically use simple, six-to-eight-character combinations that take seconds to crack. Tools like multi-factor authentication (MFA) and passwordless verification are needed to prevent significant data breaches.
Businesses typically maintain a multilayered security system that involves dedicated digital identity authentication tools, as well as commitment to compliance policies. For devices, it requires unique certificate numbers and access tokens. Individual users can choose tools like password managers and encrypted cloud storage to secure their personal information.
Business and governmental user accounts are highly valued targets. Research into public sector password use showed that government institutions don't necessarily follow the best credential protection practices, with over 91,000 exposed passwords matching email addresses with public sector domains. If public sector employees’ digital identities are compromised, the ripple effect can lead to individual and device identity details being impacted as well.
Sometimes a digital identity can be endangered due to technical errors. Two users can have near-identical login credentials and email addresses. If one user leaves a typo, or an employee handling their data accidentally forwards it to a different user, they may inadvertently gain access to each other's personal information.
Centralized vs. decentralized identity management: The future of the web
Users and companies can manage their digital identity using either centralized or decentralized methods. Centralized identity management is convenient for the users — they can use their Google, Facebook, or Apple accounts to streamline login processes, using those services as their single sign-on (SSO) option. It lets them bypass having to create a unique password for every account.
However, centralized SSO use has security and privacy issues. SSO providers like Google and Apple often require users to provide their legal name for the account. Any time you use those accounts to log in quicker, you share this personal information with third parties. If any of those accounts are hit by a data breach, criminals can more easily trace back which accounts belong to you, and then go after you directly in spear phishing attacks to gain more information.
Decentralized, or zero-knowledge, identity management gives users more control over how they manage their data. Instead of using centralized databases managed by organizations, they rely on decentralized technologies and cryptographic principles to access digital identity information directly.
Tools like digital wallets grant users privacy and flexibility to access and share digital identity proof as needed. Instead of checking data against a central database, they need cryptographic proof for verification.
Passwordless authentication is a type of decentralized management for digital identities. Instead of using a username and a password, you can use biometrics, authentication apps, tokens, digital wallets, or passkeys to verify login attempts.
Passkeys are an authentication method based on the WebAuthn framework. They use cryptographic keys and biometrics to authorize access. One of the keys is held on your device, and without it, services can’t verify your login attempts.
Passkeys are significantly more resilient to traditional cyberattacks, making them a more reliable login alternative to passwords. However, if you lose your authentication device and don't have passkeys synced to another device or an alternative login method set up, it can be hard to prove your account ownership.
NordPass makes this recovery smoother — all passkeys stored in your vault synchronize across devices, so you can access them from any device. Even if you lose your phone or need to replace your laptop, you can still log in to your passkey-protected account, as long as you're logged in to NordPass.
| Centralized digital identity management | Decentralized digital identity management |
|---|---|
| Organizations control users’ digital identities and data | Users control their own digital identities and data |
| Uses username-and-password combinations or platform-specific credentials to access services | Uses cryptographic keys and verifiable credentials |
| Single sign-on (SSO), government-issued digital IDs, digital signatures | Decentralized identifiers (DIDs), passwordless authentication |
| Data is kept in central databases owned by service providers | Data is kept on user-owned digital and physical devices |
| Users must trust third parties to manage and protect their data | Trust is distributed across the network, and data access requires cryptographic verification |
| Organizations can access, share, and, in some cases, monetize user data | Users can choose to share only the data necessary for authentication |
| Higher risk of data exposure | Lower risk of data exposure |
| Vulnerable to data breaches, system outages, and targeted attacks | Distributed architecture makes data more resilient to external attacks |
| Recovery depends on the provider and can require a full password reset using select methods | Recovery requires backup keys or trusted contacts, and proving identity can be difficult |
How to protect your digital identity
Sometimes the safety of your digital identity is out of your hands — companies that have access to your PII and other identifiable data can be targeted by cybercriminals in data breaches. However, even with these threats in mind, you can take a few easy steps to manage your digital identity more effectively.
Tip 1: Eliminate weak and reused passwords
Login credentials make up a large chunk of your digital identity — according to 2026 NordPass research, users have an average of 120 passwords. This includes websites you visit once and forget about forever. You might often disregard those websites as low importance and reuse a password or two when you set them up.
However, each reused password increases the risk of your data getting compromised. Cybercriminals use strategies like brute-force attacks and employ AI tools to guess as many potential username-and-password combinations as possible.
With the NordPass password manager, you can generate unique and reliable passwords for personal and corporate accounts. The Password Health feature helps you identify which of your digital credentials are weak, reused, or exposed to data breaches.
Tip 2: Switch to passwordless authentication (or reinforce your account if you can’t)
Passwords are the most common login method and the most frequently used digital identity proof. However, login credentials with passwords are cybercriminals’ favorite target. Through spoofed websites and phishing attacks, criminals amass giant databases of compromised user login details. If those accounts aren’t protected by additional measures, like two-factor authentication (2FA), the risk of them being lost goes up.
Instead of using the standard credentials, if possible, update your preferred login method to passkeys. Each passkey combination is unique, making it a reliable digital identity proof. You can easily store and manage passkeys using NordPass.
Keep in mind that not all service providers you use might offer passkey support. In these cases, review their available login options. If passwords are the only type of authentication available, add 2FA to the account. You can use the NordPass Authenticator to generate and autofill your 2FA codes whenever you log in.
Tip 3: Monitor your digital footprint
The points where your digital footprint and digital identity overlap are crucial for your online security. Both types of information are valuable to cybercriminals, so make sure you take good care of them. Regularly reviewing your active digital footprint can help protect your identity.
Set up alerts for data breaches and check the services you use for any recent history of cyber incidents. You can use tools like the Data Breach Scanner to detect credentials that have appeared on the dark web.
Limit how much you share about yourself online, set profiles that use personally identifiable information to private, and delete any unused accounts that you no longer need. Review your connected devices, switch off single sign-on access on vulnerable platforms and apps, and clear your browsing cookies regularly to prevent persistent tracking.
Tip 4: Secure digital copies of your physical documents
Sometimes you need to provide platforms with scans and digitized versions of your documents, like your passport or driver’s license. You might not need them often, but once the time comes, it can turn into a scavenger hunt through every forgotten folder in your computer or cloud drive.
You might consider simply leaving these files in a folder labeled “Documents” right on your desktop just to save a few minutes for the next time you have to dig them up. However, if your device was breached, hackers could easily see what you store, putting both your digital and physical identity at risk.
Instead of placing your most valuable data on your desktop, you can use the NordPass document storage. It supports any file format, letting you easily upload scans and digitized passports, ID cards, visas, certificates, and other valuable documents. You can also set up reminders for key dates like expirations and renewals, letting you stay on top of your file organization.
Tip 5: Update your software and hardware regularly
Don't overlook the safety of your devices’ digital identities. Running older software and skipping updates can sometimes cause certificates to expire, rendering apps useless. Developers can also accidentally issue duplicate registration numbers, so if you have problems with your device, you might not be able to fix them.
To avoid trouble with your devices, always keep them up to date. Make sure you install security patches — they can help protect you from data leaks and keep the files on your phone or computer safe. Avoid running an out-of-date app to prevent vulnerabilities, and check your software licenses regularly. If you have an old device that no longer receives support, consider upgrading it.
Bottom line
Your digital identity is as valuable as your physical passport. It lets you access services that hold your sensitive data and helps you prove who you are online. Taking measures to protect access to your sensitive data is key in preventing data breaches and identity theft from ruining your digital experience.
So if you’re interested in improving your digital identity protection, consider taking matters into your own hands and switching to passwordless authentication. A password is strong until it isn’t — a passkey can be exactly what you need to keep your identity and accounts protected from outside threats.