How to secure your money in first 30 mins after phone theft?

In the first 30 minutes after one's phone is stolen, it's crucial to call the bank immediately and block mobile banking access, a Moneycontrol report said. Request the bank to disable UPI, mobile app logins, and any card tokenisation linked to your device, it added. The SIM card should be blocked, as many payment systems still rely on SMS-based OTPs.