People often ask how they should protect information. The closest analogy I have is to treat information as money. This is because information has value (in most cases, it has a monetary value.) For example, sales data of one manufacturer has value to its competitor.
And just like money, they have different values. For example, a euro bill has a different value than a one hundred euro bill. You also treat them differently according to their value. This is the same as information. Information like this blog information is treated differently compared to information containing your personal information or employee information (Hint: Personal and Employee Information are more valuable).
You would not leave valuables unprotected for just anyone to take, and when you are not using valuable information (just like money), you should put it in a safe place equivalent to its value (e.g. a locked cabinet or by encrypting it). Yet a number of people leave sensitive information out in the open just for anyone to take.
So please remember the next time your company entrusts you with information, understand its value and treat it like money.