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How to be safe online, !!! When u open an email, make sure to view the…

- - - - sender's email address
      - name of the sender
      - A serial number
      - Certificate expiry date
- - - - Face scans
      - Iris scans
      - Fingerprint scans
      - Advantages
        
        Eyes or fingers cannot be forgotten
        
        impossible to forge body parts
        
        Don't worry about some1 might find out the password that had written down on paper
  - - - a word or number that identifies particular users
    - - A combination of letters, numbers and symbols
        
        Good password
        
        Mixture of letters, numbers and symbols
        
        Mixture of upper and lower case letters
        
        Don't use personal information about urself