  Nowadays, the users' browsing activity on the Internet is not completely
private due to many entities that collect and use such data, either for
legitimate or illegal goals. The implications are serious, from a person who
exposes unconsciously his private information to an unknown third party entity,
to a company that is unable to control its information to the outside world. As
a result, users have lost control over their private data in the Internet. In
this paper, we present the entities involved in users' data collection and
usage. Then, we highlight what are the ethical issues that arise for users,
companies, scientists and governments. Finally, we present some alternative
scenarios and suggestions for the entities to address such ethical issues.
