Nowadays, mobile numbers are not limited to just calls and messages; It is connected to your bank account, UPI apps, social media profiles, email and many online services. But do you know that the mobile number which you have stopped using can be given to someone else after a few months? This situation may put your personal information and online accounts at risk.
**Your old number can be given to someone else**
When a customer switches off a mobile number or does not use it for a long time, telecom companies release that number to a new customer after a certain period of time. Typically, this process is completed within 45 to 90 days. The problem occurs when people do not update their new number in their bank, email, social media and other online services. As a result, the new owner of the number may – unknowingly or intentionally – access information associated with your account.
**OTP and 2FA codes can be accessed by strangers**
Most online services use two-factor authentication (2FA) for security. While logging in or changing the password, OTP is sent to your mobile number. If your old number is given to someone else, but it remains linked to your account, the password reset link, OTP and other important security messages can reach that person. This could open the way for unauthorized access to your email, social media or banking services.
**This problem is increasing rapidly**
Every year millions of mobile numbers are deactivated and then re-released. This problem is becoming more serious due to our increasing dependence on digital services. Cyber criminals often use such numbers to commit fraud, such as taking over accounts. If the account recovery process depends on the old number, the risk increases even more.
**Take these important steps immediately**
**Check all important accounts**
Log into your email, banking apps, UPI services, social media platforms and other important accounts and see which mobile number is currently associated with them. update your number
Update your existing mobile number where the old number is there.
delete old number
Simply adding a new number is not enough; It is very important to completely delete the old number to eliminate any future risks. Move beyond SMS-based 2FA
Instead of relying solely on OTP, use authenticator apps. These apps generate the security code directly on your device and do not depend on your mobile number.
Check Recovery Settings
Make sure your old number isn’t listed as a backup contact or recovery option for any of your accounts.
Why is this caution important?
Since the supply of mobile numbers is limited, telecom companies are re-releasing old numbers – this process will continue in the future. Therefore, you have to take responsibility for your own digital security. If you recently changed your number or stopped using your old number, check all your important accounts today. Even the slightest carelessness can put your bank accounts, emails and social media profiles at risk.
