help, i have been attacked by one of those tech support scammers. he injected malware into my computer that asked to call microsoft and i believed that these alerts were real… I cannot understand why did I believe in such lies, but i called these scammers. They said that i have to purchase software, which costs over 200 dollars. I said I’d think about it and hung up. How hard is my phone or computer infected now? What should i do now???? please reply!