As an example of this in the last book, written in 2010, an 8 character password made up of both upper and lower case letters, numbers and symbols would have taken 2.25 years to crack. The same password now would take just 57 days. I have included the data in a table for you here, heat mapped with what I consider to be safe and unsafe password combinations. Where does your password fit in the table and how secure is it?