Read the following context and choose the best option to answer the question.
Context: I 'll post a picture today . Also , uninstall skype , i do n't trust it , it has a p2p system that opens your computers and uses them to route other people 's calls more efficiently . After the major attack on my computer ... i might be a little paranoid but it 's better to play it safe . Kevin 's far away working with his friend crazy steve to earn extra money . I ' m so busy that i forgot i had n't heard from him much in a day or so , and then i get worried . It 's tricky , this stress fucks with your mind .
Question: Why does the narrator no longer use Skype ?
Options: 
- They have no friends who use it .
 - They have no way to protect themselves from stalkers .
 - They do n't like it 's security .
 - They do n't earn money using it .


They do n't like it 's security .