Passwords remain the most popular method of authentication.
To protect your accounts, choose a long password that you can remember.
For example, a password like provocanyonhasprettyleaves is more difficult to crack than something like 87jb#2.
Use different passwords for every account you have.
A password manager can help you store and track passwords.
Avoid phishing and phone scams.
The IRS is not going to call you demanding that you pay taxes with iTunes gift cards.
Be skeptical of threatening emails and phone calls.
The National Cyber Security Alliance provides a number of resources about staying safe online. They have tips for both individual users and small businesses.
The Federal Trade Commission has videos and games for educators and parents, as well
as general cybersecurity tips.