Deprecation of SMS-based multi-factor authentication (MFA) mode - Zoho Security

Deprecation of SMS-based multi-factor authentication (MFA) mode - Zoho Security

Overview of SMS-based OTP MFA mode 

The SMS-based OTP MFA method involves the delivery of a one-time password to a user's mobile phone via SMS. The user receives the OTP on their mobile phone and enters it to sign into their account.

SMS-based OTPs offer convenience due to their accessibility; nearly everyone possesses a mobile phone and SMS-based OTPs arrive quickly, allowing for easy and secure authentication.

However, there are some other considerations and security risks that make the SMS-based OTP one of the least preferable options for multi-factor authentication. Hence, we’ve decided to deprecate it as an MFA mode.

Reasons for deprecation 

SMS-based OTPs are susceptible to various attacks, including phishing, SIM swapping, and signaling system 7.

Phishing attack: Scammers send fake messages with links to websites that resemble our sign-in page. For example:
They trick you into entering your login details and OTPs. If you do, scammers can access your account, putting your personal information and security at risk.

SIM swapping: By knowing your phone number, a scammer can contact your telecom provider's customer service and request to transfer your phone number to a new SIM card, giving them access to your accounts and personal data without your consent.

Signaling system 7 attack: A hacker can spy on you via the cell phone signaling system, where they can listen to calls, intercept text messages, and track your phone's location, leading to serious security risks.

Considering the security threats in SMS-based OTPs and the guidelines on implementing phishing-resistant MFA given by the Cybersecurity & Infrastructure Security Agency (CISA) of the United States government, we deprecated the SMS-based OTP MFA mode.

➤ Current status
     Deprecation of SMS-based OTP MFA mode for all users who signed up after January 1, 2024.

➤ Upcoming plan
     Migration of existing users and organizations currently enforcing SMS-based OTP MFA to alternate MFA modes.  

Alternate MFA modes

If you’re an organization admin, you can set up a different MFA mode for your organization in the security policies. If you’re a personal user, you can go to the multi-factor authentication section at accounts.zoho.com and set up any of the MFA modes described below.
  • OneAuth (recommended)
    Zoho OneAuth is a multi-factor authentication app that you can use to secure your Zoho account as well as third-party accounts, including Google, Facebook, and Microsoft. With OneAuth, you can set up any of the three authentication modes: push notifications, time-based OTPs, and QR codes.

  • OTP authenticator
    OTP authenticators are apps you can use to set up MFA for your account. These apps generate new OTPs in duration you set, which you can use to sign in to your account.
    Learn how to set up an OTP authenticator.

  • Security key
    A security key is a hardware device that you link to your account to enable multi-factor authentication. Once linked, you'll need to use this key each time you sign in to verify your identity.
    Learn how to set up the security key.
If you have any questions, please write to us at support@zohoaccounts.com.

    • Sticky Posts

    • Deprecation of SMS-based multi-factor authentication (MFA) mode

      Overview of SMS-based OTP MFA mode The SMS-based OTP MFA method involves the delivery of a one-time password to a user's mobile phone via SMS. The user receives the OTP on their mobile phone and enters it to sign into their account. SMS-based OTPs offer
    • Recent Topics

    • Personal Facebook page posting instead of Business Page

      I have a Facebook page that is associated with my Personal Profile and I am the Admin of that Page. I would like to schedule and Post to my Personal Page not the Business Page. Each time I try to connect to the "Page" it takes me to the Business Page. Is there a way of connecting to my personal page?
    • Fixed asset management

      I want to know if there is any individual module for fixed assets management
    • Recording depreciation of fixed assets as a percentage of residual value

      In India, fixed assets are depreciated as a percentage of their residual value at the beginning of each fiscal year. I went through the documentation for creating recurring journal entries, but could only find ways to depreciate by a fixed rupee amount
    • Function #28: Automatically calculate Customer Loyalty points

      Hello everyone, and welcome back to our series! Today, we're excited to share a workflow designed to streamline the management of loyalty points. Many businesses offer incentives or rewards in the form of loyalty points to their customers as a way to
    • Function #6: Calculate Commissions for paid invoices

      Zoho Books helps you automate the process of calculating and recording commissions paid to sales persons using custom functions. We've written a script that computes the commission amount based on the percentage of commission you enter and creates an
    • How to Add Product SKU in Invoice?

      How to Add Product SKU in Invoice?
    • Tracking movement between departments

      I've been developing a reporting system in Zoho and one of the groups I want to develop a report on primarily moves tickets from department to another. Is there a way to set up the reporting on Zoho (or Zoho Reports) that can tell me the number of tickets
    • Zoho CRM Calendar View

      Hello Zoho team, We need desperately a calendar view next to list, kandan and other views. I think it should be easy to implement as you already have the logic from Projects and also from Kanban View in CRM. In calendar view when we set it up - we choose
    • Call transcrition working for ringcentral?

      I don't see anything about what telephony providers can be used. The Zoho support person A said that RingCentral isn't supported. Zoho support person B said that it works, just make sure the call recording link works. Excellent instructions here: Call
    • What is syntax to call creator function (or trigger a creator workflow) from CRM deluge?

      What is syntax to call creator function (or trigger a creator workflow) from CRM deluge?
    • WhatsApp and Zoho Creator Integration

      How we have integrate WhatsApp App with Zoho Creator without using external application ?
    • Improve Creator Calendar Report

      Please can you improve the Creator Calendar Report General There is no way to highlight certain days, for example weekends or public holidays. There is no way to hide certain days, for example weekends. There is no way to modify the day header, it just
    • Important updates to Zoho CRM's email deliverability

      Last modified on: Jul 24, 2024 These enhancements are released for all users across all data centers. Modified on: Oct 30, 2023 Organisations that are in the Enterprise and above editions of Zoho CRM, and have not authenticated their email-sending domains
    • Custom modules not showing in developer console

      I'm trying to create a custom summing function for a custom module I made in my CRM. When I go to create the function, my module isnt showing up. Do I need to share the custom moldule with my developer console or something of the like?
    • Chart with Filtered Data vs Unfiltered Data

      I am looking to create a chart view that displays the full data set vs a subset of the data filtered by user filter. However I do not seem to find any method by which to exclude a plot from the applied filter or any other method by which to display the
    • Storage addon failed to upgrade

      Hi, I am trying to purchase addon storage, but i am getting upgrade failed error Sorry! We are unable to process your information. Please try again after some time. If the problem occurs again, please visit our Contact Us page to reach out to the appropriate
    • Meetups Gratuitos Junio 2024 - Profundiza en las funcionalidades de tu Zoho CRM

      Este junio, aprende a sacar el máximo provecho de tu Zoho CRM en la segunda edición de los Zoho Meetups 2024. Los días 18 a 21 de junio, Zoho organiza los Meetups gratuitos para usuarios de Zoho CRM en Valencia, Barcelona, Madrid y Sevilla, donde expertos
    • How to get the Dashboard page to be the first page when you open the app

      So when it opens on a tablet or phone it opens on the welcome page, thanks.
    • Integration between Zoho CRM and Zoho WorkDrive

      I'd like to search Zoho for an invoice I've added as an attachment (pdf) to an account. The name of the invoice is 1388-advertiserx-July.pdf - but I can't find it using the search function for any of these terms: 1388 1388-advertiserx 1388-advertiserx-July.pdf
    • Tip #17: How to mandate partial payment for your appointments

      When you require partial payments during the booking process, customers can only schedule with you after paying a certain amount in advance. This deposit acts as a commitment between both parties. Apart from that, it has many more advantages. Benefits
    • Why option for 'include form submission in the body of the email' check box is missing

      Hi In all our forms we have configured an <Email Notification> (<Rules> <Form Rules>) In some forms, there is an option to <include form submission in the body of the email> in the <Additional Options> section, however, this option is not available in
    • no puedo recibir correos

      Hola, en la cuenta de la empresa desde hace unos tres días dejamos de recibir correos y no hemos realizado ningun cambio de configuracion, requerimos asistencia urgente por favor
    • NO PUEDO RECIBIR CORREOS EN MI CUENTA ZOHO MAIL

      LO QUE SI PUEDO HACER ES ENVIAR CORREOS PERO NO PUEDO RECIBIR CORREOS. Y LA CONFIGUIRACION DE MI DNS YA ESTA CORRECTA Y APUNTAN A ZOHO PERO AUN ASI NO PUEDO RECIBIR  NECESITO AYUDA URGENTE YA QUE EN MEXICO NO HAY FORMA DE COMUNICARNOS VIA TELEFONIA CON
    • Mozilla Vault extension will not Unlock even once.

      I have been using the Vault extension in Chrome based browsers for years, yet after installing the Mozilla Extension in Firefox, it will not unlock. Initially it did redirect me to log into my account, and then enter the master password. However, it did
    • Unable to Download CRM Contact Data: WorkDrive Integration Issues

      ## Problem Description We need to let users download contact information from CRM as CSV files to their local computers. Since we couldn't implement a direct download option, we're trying to use WorkDrive as a workaround - but we're encountering issues
    • Sort mail by name and subject

      I don't see sort function on columns FROM and Subject. I see only sort functio by date. Could add it ?
    • Zoho Creator monthly roundup - September 2024

      Hello all, We're back with an exciting set of new features and enhancements that will elevate your Creator experience even further. In case you missed it, we’ve recently revamped our Product Roadmap page, now with a refreshed design and showcasing all
    • Kiosk Studio Session #1: View paid customers in the same industry

      Update | 15 Oct 2024: Session #2 is now available here! Hello everyone! We're excited to launch our new series of posts on Kiosk Studio today. Called Kiosk Studio Sessions , these posts will be packed with actionable ideas to help you get the most out
    • Issues hosting Zoho Desk Web Form on SharePoint and/or Power BI

      Zoho Desk onboarding support has no experience with embedding their web form in either SharePoint or Power BI. Microsoft states that SharePoint and Power BI only support iframe HTML. And unfortunately, the web form embed code that Zoho generates is not
    • "Send with Zoho Sign" broken

      Our company uses hyphens in our file name conventions. Our users have been sending the files from other modules with the "Send with Zoho Sign" shortcut in the upper right buttons. Since around June 10, 2024, this stopped working. Our users can send the
    • Not able to change colors help center

      Hi. How can I change the orange color in the help center? You can change everything besides this font color And how can I remove the part on the bottom?
    • Transform Numeric Values using st, nd, rd, th or Convert Numerals to Ordinal Form - Deluge

      Please Use this sample Code This_Day_Date = zoho.currentdate.toString("dd"); value1 = "th"; if(This_Day_Date.right(1) ="1" && This_Day_Date != "11") { This_Day_Date = This_Day_Date+" "+"st"; } else if ( This_Day_Date.right(1) = "2" && This_Day_Date !=
    • Kaizen #166 - Handling Query Variables in Zoho CRM

      Hello, Code Enthusiasts! Welcome to another week of Kaizen! This week, we'll dive into handling variables in Zoho CRM Queries and see how they can be deployed in Kiosk to dynamically retrieve data. This technique is especially useful for integrating data
    • Automate User Invitations on Zoho Desk with API

      Automate User Invitations on Zoho Desk with API Hello Team, We are excited to announce that you can now automatically invite users to the Zoho Desk portal using the API! ### How It Works For example, when a contact is created in Zoho Desk and you enable
    • Is there a way to add clients who don't have organisation in Zoho Books/Payroll/Expense ?

      The Zoho Practice software is only allowing a total of 15 such clients who are not organisations in Zoho Books/Payroll/Expense. i.e. 5 organisation in each of the software by creating a new organization for them and adding the accountant as the admin
    • Email with attachments saving attachments into Zoho CRM from Zoho Mail

      Hi, I get a lot of emails from prospective clients asking if we would bid their project. Those projects usually have many documents associated with them that I link to.  I would like to have those documents be saved as an attachment in my Potential or Contact or Account. I don't see a way to do that that isn't multi-step. As of now I do the following: 1.) Open email 2.) If email sender isn't in my Zoho CRM database I enter them creating a Potential 3.) I download the attachment and save it to a different
    • Fixed assets recording

      Hello there, I recorded a bill for a vendor contain (Computer) so the PC is a fixed assets, do I need to do a manual journal to include this PC under the fixed assets category (furniture & equipment)? If yes, please take me through the manual journal
    • Multi-Select lookup field has reached its maximum??

      Hi there, I want to create a multi-select lookup field in a module but I can't select the model I want the relationship to be with from the list. From the help page on this I see that you can only create a max of 2 relationships per module? Is that true?
    • Zoho Sheet-Pulling in Data

      I have a module where we track POs, Bills etc (its easier for us this way). In this PO Module, we have a task related to a Job/Deal and various fields for costs. A Supplier on a Job might have several POs in this module for the job. I want to generate
    • Can't get ZFS file ID of a field via specific module record

      I have a `fileupload` field on a custom module that I need to replace the file for but I don't know how to get the ZFS ID from the module record. # Getting the current fileupload GET https://www.zohoapis.eu/crm/v7/<MODULE>/<ID> # Response { data: [{ //
    • Next Page