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Feeling secure with your password protected Excel workbook? Think again.

Last week, I received a password protected Excel spreadsheet. This spreadsheet was used as a survey-style questionnaire. I could view but not edit the questions. I could only enter answers in some specific “response” cells. No other cells were available for editing. I could also see that some columns had been hidden. I could not unhide them.

Encryption

Hard drive encryption is not optional

Our computers contain professional and personal information, some of which is sensitive. This information can include social security numbers, credit card details and sometimes even passwords. We may also store client contracts, project reports and confidential client information on our laptops. Many of us believe that this information is secure. But this is dangerously wrong. In fact,[…]