Sextortion
Abuser: So-called hacker
The so-called hacker underestimated the power of internet, email spooling means any bastards can send spam using other peoples' email id: https://en.wikipedia.org/wiki/Email_spoofing He/she also underestimate the development of apps, he/she thought that he/she can cloak himself/herself under fake IP address. What he/she does not understand is the IMEI number.