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Network Intrusion and
Eavesdropping
 | Firewalls - The risks of network intrusion can be
reduced via the use of a properly designed firewall appliance capable of at
least stateful packet inspection. DVITS works with Sonicwall and
Netscreen firewalls due to their time-proven capability and
reliability. These firewalls are capable of providing VPN connections
to multiple remote offices, port forwarding, demilitarized zones (DMZ) for
public access servers, intrusion attempt logging and numerous other
features. With well over 50 successful firewall installations
completed, DVITS can easily use these products to help reduce intrusion
risk. Dolce Vita routinely works with Sonicwall,
Netscreen, and CISCO
PIX firewall products. |
 | Intrusion Detection - DVITS has experience with a
variety of intrusion detection products. The fact remains that it is
necessary in every case to do a periodic review of firewall and intrusion
detection logs. |
 | Virtual Private Network - With leased lines or an
open Internet connection between office networks it is relatively simple for
an attacker to capture and analyze useful traffic such as file transfers and
other data. To secure the Internet connection between multiple offices
DVITS uses VPN technology to secure data using encryption and
authentication. This goes a long way to secure your remote office data
on the Internet |
 | E-mail Encryption - DVITS does not overlook the
sensitive and critical nature of e-mail. Some of an organization's
most critical data travels via e-mail. Via the use of certificates and
encryption DVITS helps to secure this data and improve your level of
security. |
Document Handling
 | Physical Protection - Sensitive documents should be
behind a minimum of two locks. Since mechanical locks are generally
very simple to defeat, at least one of the locks should be of an electronic
or combination type. Critical documents should be kept in a safe. |
 | Shredding - It is important that documents that can
associate an individual with account information, social security number,
patient number, or insurance accounts be destroyed with crosscut
shredders. Typical strip shredders are often used due to their lower
costs but these may not pass security audits. |
 | Proper Controls - To pass security audits it is
important that records be kept under personal control. This means that
records rooms should be secured at all times. This is one area where
electronic or card-swipe locks really shine. |
Building Intrusion
 | Electronic Alarms/Security Monitoring - Rooms or
facilities with sensitive and/or critical data should be set up with
electronic alarms. If those alarms are not set up such that someone is
guaranteed to respond after-hours they should be set up with on-demand
system monitoring. |
 | Electronic or Combination Locks - numerous models of
these locks are available. They go a long way towards defeating
thieves and generally they allow for very simple re-keying in the event of
personnel changes. In addition, entry is keyless so in a small,
secured space re-entry is hassle-free compared to a standard keyed lock. |
 | Personnel Policies - Policies should exist to
provide for entry and alarm key changes in the event of personnel
changes. Unscheduled changes in these key changes also improves
security greatly. |
Virus / Worm Attacks
 | Centralized Virus Scanning on Servers and Workstations
- Depending upon the type of machine the software should be configured to
scan boot sectors, Internet and e-mail traffic, and all data files as
frequently as hourly. DVITS works with numerous excellent virus
scanning products for servers and workstations and we configure them to work
well in your business environment |
 | Daily updates of virus patterns |
 | Service Pack and security patches - These only do
their jobs if they are tested and applied in a consistent manner.
Remember that patches also apply to workstations. |
Power/Electrical Damage
 | Uninterruptible power supplies (UPS) - These should
protect not only servers but all network-attached equipment including
high-end laser printers. At a minimum the servers should be remotely
shut down in the event a power outage of long duration occurs. All
power-related events such as outages, spikes, and brownouts should be logged
and reviewed. UPS equipment increases the expected lifespan of
connected electronics by absolutely minimizing voltage and current
fluctuations. DVITS has experience with American Power Conversion
(APC), TrippLite, and Alpha Technologies |
 | Proper grounding - Server cabinets and equipment
provided with grounding capabilities should be cabled to a common ground
buss bar. |
 | Cabinets or Racks - All servers and network
equipment should be set up in organized racks or cabinets which protects
them from static electricity and from contact with non-IT personnel.
DVITS works with Great Lakes Cabinet, Mayline, Hubbell, and Belkin products. |
Flood/Fire or Structure Damage
 | Cabinetized network equipment - Keeping equipment
several inches off the floor is a tremendous help in reducing likelihood of
water damage. If equipment is left on the floor the likelihood of
water damage in either a fire or flood scenario are enormously high. |
 | Off-site storage of back-ups - It makes sense that
if all of your data is in one location, then all of your information eggs
are in one basket. Make arrangements for secure off-site storage of
backups. This may be done via storage area network (SAN) or via tapes,
but make sure it is done. DVITS works with Seagate, Sony, and HP tape
storage products for smaller tape backup installations. We generally
recommend either Veritas Back-up Exec or BrightStor ARCserve for multiple
server storage environments. We handle the configuration, testing, and
admin of your backup system and perform periodic restoration testing. |
 | Workstation Backups - Networks should be set up with
personal folders for each user which are automatically backed-up to tape or
off-site storage. |
 | Disaster Recovery Plan - Even in those circumstances
where backups are being done, a business continuity plan should exist which
defines how backup/restore testing is done so that administrators have
absolute confidence in their ability to rebuild servers should that be
necessary. Business continuity planning is an entire discipline in
itself. DVITS can provide valuable assistance in development and
testing of your plan. |
Insider Theft
 | Personnel background checks - For anyone who handles
sensitive information it is crucial to perform background checks. This
may require the prospective employee to sign a release form but with well
over 50% of information theft being perpetrated by insiders you can believe
that this is a necessary cost. |
 | No expectation of privacy agreements - This is
another one of those disagreeable HR things, but it is crucial that
employees understand that any information held or passing through corporate
information systems (including Internet usage) is subject to scrutiny.
In addition, they must understand that all e-mails and their contents are
subject to use as evidence in legal proceedings. This should be an
annually signed agreement. |
 | Non-disclosure agreements |
 | Network policies and account access - The use of
automatically enforced security features such as logon times, account
lock-out, user privileges, and user group rights should set up and not only
used, but checked periodically. Audit policies on network resources
will allow attempts to break into a portion of the system to be
logged. Application of these policies is crucial and DVITS works with
these issues every day. We configure and test policies to ensure your
environment is working correctly and in a secure manner. |
Wireless Networks
 | WEP Encryption - Utilize the highest level of WEP
encryption and authentication possible for your environment |
 | High transfer speed - Most WLANs provide either 11MBps or
22 MBps transfer rates. By setting the minimum permissible transfer
rate on the access points higher the effective range is reduced thus
minimizing the opportunities for an interloper to log onto your network. |
 | Complex encryption keys - Use combinations of available
numbers and letters to set up encryption keys. This greatly minimizes
the chances of encryption code being broken. |
 | Use of complex access point codes - These codes identify
networks in use. Never use the default codes provided as they are
already known by those people with criminal intent. Never use the SSID
as the basis for your shared key encryption codes...these are easily put
into software programs to generate an encryption key. |
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