He started off doing simple phishing attacks. But, the Russian, who is known as Bassterlord, soon graduated to planting ransomware in emails and, once an employee opened it, he was able to hold a company’s data hostage. He quickly became one of the best, and taught others how to do the same. In her exclusive interview with the hacker, Dina Temple-Raston of the Click Here podcast, delves into the ransomware underworld.