Answer:
Grey Hat Hacker
Step-by-step explanation:
Mainly there are 3 types of hackers:
1: Black Hat Hacker: Hackers who enter in our device without permission and steal our important files and blackmail us or put virus in our device without permission. Black Hat hackers are criminals.
2: Grey Hat Hacker: Hackers who enter in our device without permission but, for checking that our device is safe or not and tell us about virus(if there). They did not harm our device or put virus or take our important documents. They are not criminals
3: White Hat hacker: Hackers who enter in our device with our permission only, and tell us about virus that there is any virus in our device or not and also tell us that our device is safe or not. They are also not criminals.