Mail

There is no such thing as free email. Services like gmail, hotmail, and yahoo make their money from surveillance: they build a profile on your behavior and your desires and then bombard you with advertising specifically targeted to you. 

Why security matters

The increasing importance of information and communication has brought with it another phenomenon: the rise of a surveillance society. You can think of surveillance as an attempt by the powerful to maintain their dominance by asserting control over communication.

Protect your password

The Internet is crawling with people trying to steal your email account.

• Never give your password to anyone
• Never trust that the “From” address of an email is from who it says, because this can be forged easily.
• Web links in email messages are often fraudulent. To be safe, you should retype the link rather than clicking on it. Also, be careful about misspellings, like goggle.com instead of google.com

Beware the robot zombie army

All the bad stuff that can happen with email:
viruses
spam
phishers