Why is OTP for 4 or 6 digits online?

Simply put, there is no specific reason why the world switched from 4 digit OTPs to 6 digit OTPs other than the fact that they were more secure. Moreover guessing a 4 digit combination is easier for someone trying to hack you when compared to a 6 digit one.

What does enter your 6 digit verification code mean?

If you received a 6-digit numerical code through a text message on your mobile phone, this is a Phone Verification code. This is used to confirm that the mobile number in our system belongs to you and that you would like to receive text message notifications on that device.

What is SMS code verification?

SMS verification is a common way to add a second form of verification to apps. By sending an SMS message containing a one-time-code like “1234” or “481236” to the user’s phone number, they can then enter the code into your app to confirm that they received the SMS message.

Is 4 digit OTP secure?

1) Security: 4-digit OTP is hackable at probability 0.0001 and 6-digit OTP is hackable at probability 0.000001. Not much difference at large. Both are nearly non-hackable.

Is 4 digit OTP safe?

If a server is using 4 digit OTPs and not using proper security measures, you can actually brute force the correct OTP by trying all possible combinations possible. It may seem to you that trying 9999 possible combinations is a difficult task for a human, in fact it is, but is a piece of cake for a computer to do that.

What is 4 digit verification code?

Look for the 4-digit code printed on the front of your card just above and to the right of your main credit card number. This 4-digit code is your Card Security Code.

Why you should not use SMS?

SMS attacks either compromise phones/phone numbers or the messaging centers themselves within mobile networks. These messages are in plain text form—they’re not encrypted between sender and receiver, so if an attacker can access the message, they can read the content.

How secure are SMS messages?

With SMS, messages you send are not end-to-end encrypted. Your cellular provider can see the contents of messages you send and receive. Those messages are stored on your cellular provider’s systems—so, instead of a tech company like Facebook seeing your messages, your cellular provider can see your messages.

Why would someone send me a verification code?

They tell you a story about how they need you to prove you are real person, or a legitimate seller, not a bot, and, that they are using a special phone service that requires that you give them the six-digit code number that will be played to you by an automated verification call you will receive from Google, or via a …

Can a company send me text messages from my 5 digit number?

Do keep in mind that in the United States, in order for a company to include you in their SMS short code messaging campaigns and send you text messages from their 5 digit text number, you must have authorized them to do so.

What is a SMS Short Code and how does it work?

What Is a SMS Short Code? A short code, or a SMS short code is an abbreviated phone number that is 5 or 6 digits in length. Short codes are commonly used to send SMS and MMS messages with product discounts, passwords, text-to-win sweepstakes, and more.

What is a six-digit phone number called?

A six-digit phone number is referred to as a short code (there are also some instances of 5-digit short codes). These short code numbers were created by the major wireless carriers in 2003 to allow marketers to easily communicate with consumers.

What is a short code number used for?

Short code numbers are generally pre-approved by wireless carriers to send more messages than a long code phone number would be able to in a similar period. Short codes are a great SMS marketing tool for sending text blasts or mass text messaging campaigns. Other common uses include: Sending product discounts to subscribers