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PDA
PROTECTION
Handheld
Computing Power: A Two-Edged Sword
By JOAN HERBIG
It’s
2 a.m. Do you know where your corporate data is?
If your V.P. of marketing just ran to catch a red-eye flight, it might
be sitting in her forgotten PDA at the airport lounge. Product roll-out
dates, details about your sales pipeline, strategic pricing, and other
sensitive information may be left for the taking.
Of course, it might be stored on a smart phone serving as chew toy for
a sales rep’s pup. It might be blasted to nevermore by a failed
handheld device battery. It might even be glowing before the eyes of
a determined industrial spy.
If you think these scenarios are exaggerated, think again. Gartner Research
estimates that a quarter of a million mobile devices were left in airports
last year alone – an incredible figure, considering everywhere
else devices can be forgotten or dropped or neglected.
Gartner also predicts by the year 2005, 40 percent of corporate data
will reside on handheld devices. The ramifications of this fact are
immense. The cost of replacing a $600 device pales in comparison to
the costs of leaked NDA information or a pre-empted marketing campaign.
The question, therefore, is not whether data stored on handheld devices
can be compromised or lost, but how you’ll prevent it and how
you’ll recover.
Reaching Out to Handheld Devices
Until recently, handheld devices were little more than glorified address
books. Loss or theft of the information they contained was inconvenient,
but not disastrous (unless one happened to be a crime boss). Now, however,
personal digital assistants (PDAs) and smart phones/pagers – including
devices by Pocket PC, Palm, RIM BlackBerry and Symbian – boast
enough computing power to run full-fledged corporate applications. Many
can tie directly into the local area network (LAN) via a wired or wireless
connection, freely exchanging business data with the server. They can
then carry that data beyond the enterprise firewall – straight
into the school of hard knocks. The risks are indisputable if not yet
well publicized, and the wise system manager, vice president of IT or
CEO would do well to prepare now to minimize those risks.
A new category of software makes this possible, allowing handhelds to
be managed and protected just as LAN PCs are. With this mobile infrastructure
technology, network administrators are able to:
• Defend handheld devices against unauthorized access;
• Deter or prevent intentional information theft;
• Recover lost data and make it possible for the affected user
to get back to work.
By extending administrative oversight to handhelds, the enterprise is
able to minimize data loss, as well as unpleasant side effects should
disaster strike.
Preventing Unauthorized Access
Because handhelds can be tucked into a purse or a pocket and carried
everywhere a user goes, they often are considered “private”
tools, outside the corporate purview. This is certainly the case as
long as the device is used to play electronic pinochle or keep track
of wallpaper samples. But the moment a user downloads data from the
corporate network, the company gains a vested interest in protecting
that data. In fact, a company that does not take steps to do so puts
its business at risk.
Take the case of the executive who left her PDA in the airport lounge.
What if she hadn’t turned on the password feature? (Most people
don’t.) Any passerby could switch on the device and gain complete
access to everything in its memory. The fate of all that corporate data
is literally in a stranger’s hands.
But let’s say the executive’s company had implemented a
mobile infrastructure solution. On her way to Detroit she calls the
IT administrator from the airplane and lets him know the device is still
in Memphis. If the device uses a wireless connection to the network,
the administrator can simply connect to the device and lock it down
(turn on password protection). He can also download a message to the
lockdown screen explaining how to contact the device’s owner.
For devices that depend on a wire-line connection (or if the device
is located outside the wireless coverage area), remote lockdown is still
possible, if not immediate. When an unrecognized user tries to connect
to the Internet, the corporate server automatically detects the attempt
and locks down the device.
In addition, if a device belongs to a wireless network, it is possible
to determine the communication tower closest to its location. This information
may jog the memory of a user who hasn’t a clue where he left his
device.
Preventing
Information Theft
Sending a lockdown command from a remote location effectively prevents
the casual finder from viewing data on the device. But some “finders”
may actually be savvy thieves who know darn well how to hack a password
or retrieve data via the infrared or serial port. As always, foiling
determined hackers requires stronger measures than shielding data from
random eyes. Using mobile infrastructure technology, the IT administrator
can take several steps to reduce the opportunity for hackers to do significant
harm:
1. Data on the device can be stored in encrypted form and retrieved
in a readable format only after a recognized password has been entered.
It goes without saying that data traveling between the server and the
device should also be encrypted.
2. If the information on a lost device is sensitive, it may be safer
to delete it altogether rather than simply locking down the device.
This security measure may be the last in a series of actions taken to
protect device data. For instance, if a device has not connected with
the server for 12 hours, a lockdown command is automatically sent. If
the device has not connected for 36 hours, all data is deleted from
the device. The device can be configured to carry out actions such as
these even when it is severed from network contact. The ability to erase
some or all of the device data allows the corporation to maintain control
of this precious resource, even if the device itself is no longer in
its possession.
3. Configuration standards for handheld devices can be defined and automatically
enforced from a central location. Every time a user connects to the
corporate network, configuration settings can be checked and automatically
changed if they’re out of compliance. As a result, the user who
turns off password protection soon finds that it has been automatically
turned on again. He may also receive an e-mail explaining why the precaution
is necessary and encouraging him not to disable it again.
Recovering Lost Data
The enterprise bears the brunt of data loss or misuse, in terms of liability,
competitive weakness and reduced employee productivity. The employee,
however, feels the full force of that loss in terms of frustration and
heartfelt anguish.
What if the PDA left at the airport contains a presentation the executive
is giving to a major prospective client in two hours? Without a mobile
infrastructure solution, she would be on her own. But her frantic call
to the IT administrator is not in vain if he can “reach out and
touch” the device via handheld management software. If she purchases
a new PDA at the nearest office store and connects it to a PC with Internet
access, the administrator can simply 1) download the mobile infrastructure
solution onto the new client; 2) authenticate the user; and 3) restore
the device to its last known settings, including all applications and
data.
The new device looks and acts exactly like the one that was lost. And
the grateful executive is able to give her presentation, although her
hands might still be shaking.
Of course data loss can occur even when a device remains in the user’s
possession. The handheld might bounce down an escalator or go through
the wash. Or it might just sit there too long. Handheld device batteries
have a relatively short life span, which most users aren’t known
to chaperon with much diligence. For some devices, when the battery
discharges completely only the data burned into ROM at the factory is
retained. Everything else is lost, including applications, settings
and data. While the data is safe from misuse, it is just as unavailable
for legitimate use, which can cause even the toughest salesman to call
the IT department near tears, pleading for help.
That help can only be given, however, if the data on his device has
been adequately backed up. Again, the average computer user isn’t
famous for making conscientious backups, and this is especially the
case for busy, mobile users of handhelds. For some reason the average
human mind can’t conceive of a month’s work gone missing,
despite the fact that handhelds are easily lost, stolen, broken, or
subject to battery failure. So if backups are going to happen, they
need to take place automatically; they need to store the data on the
server (not on the companion laptop kept in the same place as the handheld);
and they need to be performed in an unobtrusive manner.
With mobile infrastructure technology, all this is possible. Device
backups can take place in the background, whenever the user connects
to the server to check e-mail or update his work orders. Better yet,
a server-side solution allows the IT department to control how often
data is backed up, as well as where and how it is stored.
Wielding The Two-Edged Sword
The increased computing power of today’s handhelds allows enterprises
to improve the productivity of field employees and streamline many labor-intensive
business processes. Nevertheless, this increased power is truly a two-edged
sword. The mobility that makes handhelds so convenient also makes them
unpredictable wildcards, capable of wreaking havoc on the entire enterprise.
The need to extend network management capabilities to mobile handheld
devices is obvious. By implementing mobile infrastructure technology,
companies can protect themselves from data theft, and recover quickly
from its accidental loss.
Joan Herbig has held various positions with XcelleNet including president
of the managed systems division during the period of XcelleNet’s
acquisition by Sterling Commerce. Prior to the acquisition, she was vice
president of marketing. Herbig was named the 2001 Woman of the Year in
Technology by the Technology Association of Georgia. Before joining XcelleNet,
Herbig was with Digital Communications Associates (DCA) from 1987 to 1995.
Hergib began her business career in customer support at IBM Corporation.
She earned a B.A. in French from the University of Louisville and a M.S.
in Computer Science from the University of Kentucky.
To comment on this article, go to 1603-15 at www.drj.com/feedback.
©Copyright
2003 Systems Support Inc. All rights reserved. Reproduction in whole
or in part in any form or medium without the express written permission
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