To anyone considering using anonymity tools, research and _understand_ what you are using and how it works first. It is extremely difficult to use these tools correctly, even for experts. For example, if you use tor, you are sending your traffic through computers called exit nodes. If your exit traffic is not encrypted (you are browsing a site with http rather than https or using some other unencrypted protocol), then the controller of that exit node can trivially intercept or modify your traffic. The fact that you are using tor is easily determined by anyone who can see the encrypted traffic (tor is easily fingerprinted), or who controls the site you are accessing (because the exit nodes are known). You must understand 0day's, certificate authorities, DNS, timing/clock/browser/OS fingerprinting, traffic analysis (how many exit nodes does your adversary control?), anonymity vs confidentiality... the list goes on and on.

Security is hard.