Why is UPI blocked due to security reasons?

A UPI ID may be blocked as a security measure by banks or UPI apps to prevent fraud and limit suspicious activity. Common reasons include multiple incorrect UPI PIN entries, which temporarily disable access. Banks may also initiate a block if they detect unusual login attempts or suspicious transactions. Furthermore, outdated account information or security threats can lead to restriction. If your UPI ID is blocked, you should check with your bank or contact app support like Paytm Help for the exact cause and resolution.