My ex somehow knows everything I post of the internet. She never had access to my computer so I guess we can rule out a keylogger. She can find pages I created on sites like Meetup. She can find posts I made and conversations I had on Craiglist. My email address is on yahoo and secured using a code sent to my cell phone. I have frequently changed passwords on various site yet she will eventually find them. How can she do this? Can she somehow employ a hacker to find everything I do on the internet? How can I make my identity absolutely secure and post and communicate with confidence?