# How OTP SMS services help reduce Account Takeover (ATO) attacks?
Account Takeover (ATO) attacks are a significant threat in today's digital world, where hackers seek to gain control of user accounts through stolen credentials. One of the most effective ways businesses can protect their users from ATO attacks is by using One-Time Password (OTP) SMS services. **What is OTP SMS?** [**OTP SMS**](https://dmsms2orbitcom.odoo.com/how-otp-sms-services-help-reduce-account-takeover-ato-attacks) refers to the use of a one-time password sent via SMS to verify the user's identity. This password is usually a unique, time-sensitive code that the user must enter to complete a login, transaction, or other sensitive action. Because one-time passwords are valid for a short period of time and are only used once, they add an extra layer of security that makes it much more difficult for hackers to gain access to accounts. **How OTP SMS Prevents Account Takeover (ATO)** **Second layer of protection:** [OTP SMS provides ](https://dmsms2orbitcom.odoo.com/how-otp-sms-services-help-reduce-account-takeover-ato-attacks)a second layer of protection in addition to username and password. Even if a hacker manages to steal a user's password through phishing or brute force attacks, he still needs access to the user's mobile phone to receive the OTP. This makes it extremely difficult for attackers to complete an account takeover. **Time-sensitive authentication:** OTPs are time-sensitive, meaning they expire after a short period of time (usually a few minutes). This makes it less likely that a hacker will later be able to use the stolen OTP to access the account. The timeout ensures that even if the OTP is captured, it quickly becomes unusable. **Unique for each transaction:** Each one-time password is unique and created for one use only. This makes it impossible for attackers to reuse the OTP and ensures that every login or transaction is secure. The dynamic nature of OTP prevents hackers from using old or stolen credentials. **No internet dependency:** OTPs delivered via SMS do not rely on internet access, so they are available even in areas with poor connectivity. This ensures that users can always securely authenticate their actions, regardless of their location, while simplifying and speeding up the authentication process. **The importance of OTP SMS in today's security environment** As more businesses rely on digital platforms, the risk of ATO attacks continues to grow. OTP SMS services act as a basic security measure that prevents unauthorized access. Not only do they offer users a direct way to secure their accounts, they also help businesses comply with security regulations and protect sensitive customer data. If More Information About The SMS Service Provided By [SMS2ORBIT](https://sms2orbit.com/otp-sms-service/) Is Desired, Please Don’t Hesitate To Contact The Business Team. They Can Be Reached At **** Or By Calling **97248 55877**. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://sms2orbit.gitbook.io/can-whatsapp-api-be-used-for-automatic-otp-verific/how-otp-sms-services-help-reduce-account-takeover/how-otp-sms-services-help-reduce-account-takeover-ato-attacks.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.