Carlton’s Security Checklist for Corporate Computer Systems
Presented below is a detailed list of security measures that you should consider taking to safeguard your company data and computer systems.
Physical Security Measures
Make sure that your building is very
secure to prevent intruders and theft.
Install extra window locks and door
locks.
Consider hiring a building guard.
Install key entry systems that monitor
and record employee access.
Install door locks on internal doors to
prevent access to file servers & systems.
Make sure that appropriate fire
prevention measures are taken to prevent fire.
Install UPS systems to protect against
power outages.
Install surge protectors to protect
against power surges.
Replace surge protectors regularly, and
UPS’s as needed.
Use computer locks to bolt computers to
desks and tables.
Use computer locks to protect laptop
computers when traveling.
Password & Encryption Measures
Require all users to password protect
their computer systems at the boot level.
Require all users to password protect
their operating system.
Require all users to obtain digital IDs
and send only encrypted e-mail.
Require all users to password protect
sensitive documents.
Use the accounting system’s maximum
password capabilities to prevent unauthorized access.
Require all users to change their
passwords periodically.
Require users to use only large
passwords containing a mix of letters and numbers.
Require users to use a different
password for every function.
Back Up Measures
Create a recovery diskette for each
computer system periodically (monthly).
Back up all company data to a single
source daily including data files, e-mail.
Keep a Back up of all company data off
site daily.
Back up each computer system daily.
Keep a back up of each computer system
offsite.
Run a “System Imaging Program” such as
Columbia Data Products.
Use only current hardware systems and
components which can be replaced quickly if necessary.
Rotate backup media regularly. Retire
older media to offsite permanent back up and introduce new media regularly.
Utilize a father/son/grandson approach
to creating multiple back ups.
Back ups should be read and verified.
Operating System, System Settings and Program Updates
Only run operating systems that provide
top level security such as Windows 2000 or Windows XP (Windows 98 does not).
Update your operating system frequently
for the latest security patches. If your operating system supports it, enable
the automatic update capabilities.
Update your e-mail system frequently
for the latest security patches.
Update your internet browser frequently
for the latest security patches.
Update your application programs
frequently for the latest security patches.
Establish minimum browser settings
requirements for all users regarding downloading files and accepting cookies,
etc.
Configure your browser’s content
advisor to curtail access to inappropriate web sites.
If you use Windows 2000 or Windows XP
Professional, review the Event Log frequently and look for logons at odd times.
All software products should be
registered to receive product alerts.
Anti-Virus Measures
Run live anti-virus software on each
computer system.
Update all anti-virus software
regularly.
Establish a policy that anti-virus
software is to remain active at all times.
Set anti-virus software to
automatically scan all incoming mail and attachments.
Set ant-virus software to automatically
download virus signature file updates.
Set anti-virus software to
automatically scan your computer system regularly.
Personnel Policies
Have users sign a letter acknowledging
that internet access is restricted to business purposes only.
Expressly forbid employees from access
to pornography sites with company provided computer systems and internet access.
Inspect employee computers regularly
for evidence of inappropriate internet access or spamming.
Advise employees that the company
retains the right to read any and all e-mail.
Scan all e-mails regularly to identify
inappropriate communications.
Advise employees not to install
unlicensed software on company computers.
Advise employees not to install company
software on personally-owned computers.
Advise employees not to allow family
members or others access to laptops.
Advise employees that children and
teenagers are not forbidden to have unsupervised usage of company provided
Internet access at home.
Make sure to include a securities
section in the corporate policies manual.
Audit employee computers regularly to
search for unlicensed software.
Advise employees to use their business
e-mail address for business related purposes only, and to avoid supplying email
addresses to potential spammers via instant messaging or chat room registration.
Advise employees to use credit card
numbers only on secure web sites.
Advise employees to protect sensitive
data concerning online payment accounts and banking identification numbers.
Advise employees to take reasonable
measures to ensure the authenticity of important web sites and e-mail addresses
before using them for company purposes. If necessary check with eTrust or
BBBonline first. The company may also call the company or person on the phone to
help determine legitimacy.
Advise employees to always read privacy
policies before providing information over the internet.
Accounting personnel should scan
statements for any unrecognized charges, no matter how small. These small
charges could be criminal tests for larger charges to come.
Employees should be advised not to open
unrecognized e-mail attachments.
Advise employees to be wary of
attachments forwarded even by names you recognize. They should save attachments
to the hard drive first so the antivirus software can act on it before opening.
Advise employees not to play games
online, especially if they involve downloading a program.
Advise employees not to download
illegal copies of music or movie clips to company computer systems or using
company provided internet access.
Advise employees to avoid
internet-based peer-to-peer networking sites (often used for live video chat or
file swapping).
Advise employees not to share diskettes
used at school or by other companies.
Advise employees to immediately report
computers that slow down, large amounts of unexplained modem or hard drive
activity, or unusual behaviors in their computer system.
Firewall Measures
Install a firewall device in front of
your company’s internet connection.
Install a firewall device in front of
all internet connections located in employee homes.
Make sure that your firewall is
designed to detect and prevent denial of service attacks, unauthorized access,
and preferably blocks viruses and filters pornography.
Update your firewall software regularly
with the latest security patches.
Review firewall logs regularly to
identify or monitor attacks on your system.
Identify Theft
Advise employees to be alert to
identity theft by review accounts online frequently to spot unauthorized
transactions; and to review all monthly statements for unauthorized activity.
Advise employees to call an account if
they do not receive a monthly statement in the mail.
Advise employees to obtain credit
checks annually to see if anyone has opened a new account in their name.