title: Copy all current system data content in memory
body: <p>I'm studying security, and I would like to know: in Windows or Unix based OS environment, is there a way for anything (programs or user with some knowledge) to copy all the content of the computer's memory?</p>
  
  <p>My worry is about a hacker get my decrypted data loaded in memory. And how to avoid it.
  The hacker may be the user himself.</p>