Always use a secure password.
A secure password is the best way to keep nasty people away from your data.
8 characters is good 12 is better.
UPPER, lowercase, numbers and a couple of special characters usually do the trick.
The PC Tools Password Generator allows you to create random passwords that are highly secure and extremely difficult to crack or guess due to an optional combination of lower and upper case letters, numbers and punctuation symbols.
Try it for yourself here > > > Password Generator