
When you participate in discussion groups or chats, you are likely sending a message that can be read anywhere in the world. Anyone out of curiosity can copy the message and keep it indefinitely. In this way, you can find the names of the groups in which the user participated and is a member. The names of those groups can reveal a lot about the user.
How to prevent abuse
- Participate in chats or newsgroups only using a pseudonym.
- Be cautious. You should not provide your personal information unless necessary.
- Use another destructible email.
- Some groups that keep old messages offer a tool to delete messages and this should be used regularly!

