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Protecting Your Network from Home Wireless Hackers
As the lines between home
and business computing continue to blur, even the enterprise IT
administrator needs to be concerned with their employee’s security
practices on their home wireless network.
The last thing you want
is for a hacker to compromise your employee’s computer via an
under-secured home wireless connection, and then quickly and
efficiently travel down that handy remote user VPN tunnel straight
into your business’ network. Educating employees on the secure use
of wireless home networks can be as simple as reviewing the
practices of “SAFE WIFI.”
|
S |
SID
Broadcasting “OFF” |
|
A |
ctivate
WPA2 encryption & authentication |
|
F |
irewalls
(and especially proxy-based firewalls) are best |
|
E |
mploy
strong passwords |
| |
|
|
W |
eb
controls |
|
I |
nactivate
“automatically connect to non-preferred networks.” |
|
F |
ilter MAC
addresses “ON” |
|
I |
PSEC VPN
as remote connection to the office |
1. SSID Broadcasting
“OFF”
There is really no reason to broadcast a home wireless network SSID.
Liken it to the risk taken when a sign outside a home welcomes
visitors by providing the family’s first and last names. With name
and address, criminals can obtain enough additional information from
the internet to make the household a likely identity theft target.
2. Activate WPA2
encryption & authentication
There are three standard offerings for securing your wireless
communications, which include WEP, WPA and WPA2 in order of
increasing security. WPA and WPA2 offer encryption for the entire
session, with WPA2 offering the strongest encryption.
3. Firewalls (and
especially proxy-based firewalls) are best
More often, we are seeing firewalls deployed in line with the
wireless router in home networks as an effective way to improve
security. Looking to tighten the wrench one more turn for increased
home network security? Then, the firewall should offer
“proxy-technology” for true application layer security – a step
above standard packet filtering.
4. Employ strong
passwords
Today’s strong passwords are at least 13 characters, they use upper
case, lower case, numbers and symbols, they use nonsense words, and
have no direct connection to the user. One example of a strong
password would be “When U W1sh upon a St@r!”
5. Web controls
Today’s hackers make special efforts to get victims to either
divulge their personal information or recruit the computer for
organized criminal activity, and this gets easier if the home
wireless network has been hacked. To make this harder, configure the
firewall to block known bad “blacklisted sites,” regions of the
world and IP addresses. In addition, some UTM appliances offer URL
filtering services that limit the scope of internet activities by
categories. Reducing the portion of the internet that can be visited
will help ensure a secure home network.
6. Inactivate
“automatically connect to non-preferred networks.”
Criminals can gain access to privileged information, and then use it
to hack into a home wireless network by setting up a rogue access
point. If users have “automatically connect to non-preferred
networks” activated, then they will likely connect to the rogue
without knowing.
7. Filter MAC
addresses “ON”
Be sure to set up the wireless router/firewall to only allow known
computers to connect to the wireless network.
8. IPSEC VPN as
remote connection to the office
As more employees are working from virtual or remote home offices,
criminals are drawn to the home wireless hack as an attack vector
into the enterprise network. Only strong security for both wireless
security and remote connection will deflect these attacks. Given the
choice for remote network connection between a standard VPN, SSL VPN
and IPSEC VPN – the IPSEC VPN will support the strongest security.
While there is no
guarantee for 100% hacker-free security, the “SAFE WIFI” practices
package some of the best security that is commonly available with
today’s home network products. Following ”SAFE WIFI” and staying
tuned to new changes allows users to safely enjoy the convenience of
wireless communication in the home now and in the future, and helps
to protect the enterprise from network attacks.
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