Although concrete barricades block physical access to many roads and buildings throughout the Washington, D.C., region, a Federal Computer Week team discovered that information and systems at many defense and civilian agencies are left exposed through wireless networks.

Despite all of the attention focused on cybersecurity, agencies still have vulnerabilities, either because data on the wireless links is unencrypted or because wireless access points are broadcasting signals that hackers could use to attack the network.

By Bob Brewin and Frank Tiboni at FCW.

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