Can Hike messenger steal our whatsapp data As per new update of Hike messenger, giving reward upto ₹10000 for making your friend join Hike. To do this Hike asks accessbility permission. And when you refer a friend or a group, all messeges starts showing in Hike. So now I guess Hike can read our all whatsapp text messages and media shared. 

But the problem is that after getting accessibility permission, it can read all the notification, even OTPs of our transaction. So how can I assure my security and privecy.

Is it a big concern or am I missing something with their terms and condition?
"The problem is that after getting accessibility permission, it can read all the notification, even OTPs of our transaction. So how can I assure my security and privacy?"

Turn off SMS, NOTIFICATION ACCESS permissions to that app. 



Kindly add more details about your smartphone so I can answer better.