An Indian lady with strong indian accent claiming to be from singtel technical side.
Informed me that my home wifi has been compromised and currently being used by more than 20 people.

Was informed to check the 'wifi box' to see the blinking lights. Blinking lights shows that it's used by many people.

Wanted to run through the process of protecting my wifi by providing some otp etc.
I told her I am not comfortable and the internet is under my husband's name so they should call my husband instead.

Then she hung up.