Securing user accounts for multiple devices: Challenges with OTP SMS services
This blog explores the key challenges of using OTP SMS to secure accounts across multiple devices and what businesses can do to address these concerns. 1. Device dependency for OTP delivery OTP SMS services rely on the mobile phone number registered with the user account. If the user accesses the account from another device (such as a tablet or desktop computer), they must have their mobile phone handy to receive the one-time password. This creates a dependency on a single device, which can be inconvenient when the user's phone is unavailable or out of reach. 2. Network and connection problems For OTP SMS to work effectively, the user's phone must have a stable connection to the mobile network. When using multiple devices, especially in areas with poor cellular coverage (such as indoors or in rural areas), users may experience delays in receiving OTPs, which can cause frustration and potentially get them locked out of their accounts. 3. Vulnerability to SIM Swap Attacks Users