HyperOS from Xiaomi having also an issue related user privacy. I noticed, If you having banking account in some bank, you have brought smartphone at your own name like retail bill, If you doesn't turn off your old Xiaomi messenger setting in built personalized ads, They shows a text messenger from your bank account like, "Dear your name, your Kyc is terminated from your "bank name", please click video kyc link". Be aware, this text message is fake.
When i checked original bank message, original message from bank, it didn't show reply while Fake message in the name of bank, this will open to reply with fake link, I noticed the number of fake text message is not similar as i given to bank. This is also a reason of how frauds are circulating online.