On the basis of this, the fraudster is able to link / register your mobile number / account with UPI on his own mobile device.Forward one SMS to you and advise you to forward it to a specific mobile number from your phone.Further, Mobile Banking credentials and PIN are vished (stolen) from you and the fraudster can now choose to carry out financial transactions from your mobile app which was already installed.
Once granted, fraudster is now in control of your mobile device. Don’ts This is how they do it with AnyDesk app: