Connect to networks using the highest level of security available, such as WPA2 for wireless networks. Connecting to unknown, open wireless networks is very risky. If only unsecured networks are available (e.g., at public wireless hotspots), take extra care with these steps:
Disable the "automatically connect to non-preferred networks" setting to make sure you connect only to approved wireless access points.
Turn off file and printer sharing.
Switch off your wireless card when not in use (how to do this will depend on your device; see the manufacturer's documentation).
Use only VPN or other encrypted tunnels for business use (these instructions should be provided by your company's IT department).
For safer, anonymous Web surfing, consider using a Web proxy or VPNs designed for consumer use.
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