What is OTP Code ? | OTP Code kya hai | What is OTP verification | OTP Full Form | OTP Full Meaning | OTP Registration
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| What is OTP Code ? |
A one-time password (OTP) is a string of letters or numbers that authenticate a user for a single login attempt or transaction. An algorithm generates a unique value for each one-time password by factoring in relevant information, such as time-based data or previous login events.
Tech support teams typically provide OTPs to those who have forgotten their login credentials on an account or website, or when the resource in question needs additional protection from unwanted access attempts. OTPs can also add a second layer of authentication that an unverified user will need to pass before accessing an account.
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| OTP Verification |
How to Get OTP Number ? | OTP kaise paye wa OTP kaise prapt kare | How to get OTP on email
When an unauthorized user attempts to access a system or perform a transaction on a device, an authentication manager on the network server generates a number or shared secret, using a one-time password algorithm. The same number and algorithm are used by security tokens on a smart card or device to match and validate a one-time password and user.
Many companies use short message service (SMS) to provide a temporary passcode via text for a second authentication factor. The temporary passcode falls out of band via cellphone communication when the user enters their username and password on network information systems and transaction-oriented applications.
For two-factor authentication (2FA), the user enters their user ID, traditional password, and temporary passcode to access the account or system.
When authenticating users, companies need to keep three independent factors in mind:
Knowledge:- Everything the user knows, such as a password, PIN, or security question answer.
Possession:- The user has things like a token, credit card, or phone.
Biometric:- Things that uniquely identify the user, such as fingerprints or behavioral data.
In addition to passwords, security teams often distribute captured factors such as OTP using tokens and phone notifications - things the user already has.
What are the benefits of one-time password (OTP)?
Now that you know what OTPs are, check out how they protect businesses.
Resistance to redo attacks: OTP authentication provides distinct advantages over using static passwords alone. Unlike traditional passwords, OTP is not vulnerable to recurrence of attacks - where a hacker accepts the transmission of data (such as a user submitting their password), records it, and uses it to access the system or the account itself to reach. When a user gains access to their account using OTP, the code becomes invalid, and therefore cannot be returned by attackers.
Difficult to estimate: OTPs are often generated with algorithms that use randomness. This makes it difficult for attackers to successfully guess and use them. The OTP can only be valid for a short time, requiring the user to have knowledge of the previous OTP, or provide a challenge to the user (eg, "Please enter the second and fifth numbers").All these measures further reduce the environmental attack surface compared to password-only authentication.
Tampering with passwords reduces risk: Users who do not adopt strong security practices recycle the same credentials across different accounts. If these credentials are leaked or otherwise fall into the wrong hands, then stolen data and fraud are significant threats to the user on every front. OTP protection helps prevent access breeches, even if an attacker has obtained a valid set of login credentials.
Easy Adoption: It is also easy for organizations to have a time passcode that integrates into their authentication strategies. While the esoteric nature of these codes makes it difficult for people to remember, phones, tokens, and other technologies are widely accessible for security teams to use and distribute to their employees.
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| Types of OTP Code |
What are the types of OTP ?
OTP authentication is possible for tokens. There are a few different types that you will come across.
Hard token
Hard tokens (in hardware) are physical devices that transmit OTP, enabling users to gain access to accounts and other resources. The tokens broadly include:
Connected Token: Users connect these tokens to the system or device they are trying to access. The smart card and USB drive are inserted into the device's smart card reader and USB port, respectively.
Disconnected tokens: Although users do not have to physically insert these tokens, disconnected tokens typically generate OTPs for users to enter. Pocket-sized key fobs, keyless entry systems, mobile phones, and banking security devices are some examples of this action.
Contactless tokens: These tokens transmit authentication data to a system, which analyzes the information and determines whether the user has rights. The Bluetooth token is an example of contactless transmission, with no need for physical connection or manual input.
Soft token
Soft tokens (as in software) are not physical items we have. Rather, they exist as software on a device such as a laptop or mobile phone. Soft token authentication usually takes the form of an app that sends push notifications or SMS messages to the user to respond and verify their identity.
All these methods follow the same basic procedure: the user sends authentication data to a system, the system verifies whether the information is correct, and if so, the user grants authorized access. This is very similar to using a password, but authentication data with OTP does not travel or leak beyond the user or target system.
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| Authentication Method For OTP |
Which authentication methods are best?
Not all methods are created equal. Implementing any form of MFA improves upon using passwords alone, but each authentication factor provides varying degrees of security. We have received some recommendations that will help you avoid weaknesses.
SMS authentication may be more convenient, but less secure
We know from our day to day lives how easy it is to communicate via SMS. Again, it is understandable that many companies and service providers have implemented SMS OTP as another form of identity verification.
Unfortunately, the SMS OTP is open to multiple lines of attack, including:
SIM swapping and hacking: Your SIM card tells your phone which carrier to connect to, and which phone number to connect to. In a SIM swap attack, a threat actor convinces your carrier to switch your number to a SIM that they own. As a result, they can access all SMS OTP messages synced to your accounts.
Account Takeover: Many wireless providers allow users to view text messages within their web portal. If your online account for the web portal is protected only by a weak or common password, an attacker can break this account and access any SMS TTP messages.
Lost and synced devices: In theory, losing your phone means that you should not be able to receive SMS OTP messages. However, we can now sync messages between different devices, allowing us to authenticate via SMS OTP and access accounts even without a phone. Forwarding such sensitive messages is not a strong security practice - especially if your email is a predictable password.
Phishing: In a social engineering attack, a dangerous actor who employs an employee from a trusted service deceives you into handing over your account credentials and your SMS OTP. The phishing attack hinges on hackers who exploit users' feelings or lack of knowledge, and can leak SMS OTPs like passwords.
As more companies adapt to remote work, the workforce is using their mobile devices to access workplace applications. Check out our Business @ Work (from home) report for more information about how this is affecting security practices.
OTP security token vary
Hard tokens, like RSA SecureID, are a definite upgrade over SMS-based OTP - a user trusting something in their own right makes them less exploitative than knowledge-based authentication. What's more, an OTP device such as a Universal 2 Factor (U2F) authentication security key, uses asymmetric encryption algorithms to ensure that the OTP never leaves a token, effectively meaning that it doesn't leak. It is possible.
However, the tangible nature of hard tokens also works against them. Users are required to move any other device, which may be lost, damaged or stolen. This makes it challenging to maintain OTP tokens, especially in large organizations, and can compromise security when in the wrong hands.
Additionally, tokens that must be physically connected to a device are not always accessible. For example, a USB drive such as a U2F key is not a practical solution to secure mobile devices that do not have USB ports.
Authenticator apps are a strong choice
Mobile Authenticators like Octa Verify, Auti, and Google Authenticator verify users by sending OTP and push notifications to a user's app. Authentication apps are more secure than the above methods for several reasons:
Mobile OTP does not depend on Internet access, your location, or the security of your wireless carrier. OTP and push notifications are associated with your device rather than your number, and they typically operate without network service or data.
Mobile OTP is typically a free feature built into many Authenticator apps, which means it is easy to use in enterprise and personal contexts.
Push notifications and mobile OTP codes expire faster than SMS OTP, reducing the risk of exploitation.
Some authenticator apps support biometrics such as facial and fingerprint recognition. This provides a strong layer of security - even if your phone is stolen, no one else can, but you can accept push notifications to the device.
WebAuthn protects even more devices
WebAuthn is a browser-based API that uses registered devices (desktop or mobile) as authentication factors. Biometric authentication built into devices (eg, Windows Hello, Fingerprint on Android, Touch ID on iOS) all enable WebOne, such as portable devices such as Yubikey 5Ci.
WebAuthn offers some unique benefits:
Thanks to public key cryptology, it effectively protects users from phishing attacks.
Integration with users' devices and biometrics creates a quick and easy login experience.
Google Chrome, Microsoft Edge, and Firefox enable all pairing with biometric devices to enable WebAuthn.
Finally, we recommend implementing mobile app authentication and WebOn using other OTP methods as a backup.
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