Do I Need a Password Policy?
In a previous Talon KnowHow article we
wrote about the security risk of using weak passwords online
and expanding on this theme we ask 'Does your company need a
password policy?'
So does my company need one - in a
word 'yes'.
No matter what the size of an
organisation a password policy, that ensures strong passwords that
are changed often, is a must. Weak passwords are easily cracked and
so your company is only as strong as is its weakest password.
First of all let's define what a
password policy is and from the all knowing Wikipedia we get:
'A password policy is a set of rules
designed to enhance computer security by encouraging users to
employ strong passwords and use them properly.'
Password policies usually outline a
standard for the creation of strong password, how you should
protect those passwords and the frequency of change. Usually there
is also an enforcement aspect in which users who violate the policy
are subject to the company's disciplinary procedure.
An effective policy will stop
passwords from being cracked or guessed. This will help
prevent your network being compromised and the loss,
exposure and/or corruption of your data.
Imagine a company which has no
password policy - there is no restrictions on the passwords staff
can choose and they never expire. You may think that as long
as the administrator password is secure this doesn't matter.
But everyone that has a password
has access to some part of your network. Even if a
user only has minimal access to the accounts database, for
instance, if their password is cracked the hacker now has
access to your accounts database.
The hacker might even conclude that as
the password was easy to crack then others in the company are
likely to be too and therefore gains even more access to your
network.
It's even more important if you have
staff who access your network remotely from laptops. If there
is minimal password security and a laptop is pinched a hacker can
gain access to the laptop and then very easily access to your
network.
If you don't have a polilcy then next
month we'll look at guidelines for setting up a password policy
that works. And if you have a Windows Server then you will
already have the ability to apply the rules that you
choose.