A New York Times article offers useful reminders that "Web Surfing in Public Places Is a Way to Court Trouble."
When on your own laptop, make sure to maximize your security strength:
- Set your ZoneAlarm firewall to HIGH.
- Add the new wireless network to the "Untrusted" zone.
- In advance, add sensitive data to ZoneAlarm’s IDLock (available in ZoneAlarm Internet Security Suite and Pro).
You’ll then be warned if your data is being transmitted from your computer at a time when you haven’t sent it.
A note about the alerts: If you have short numbers like 1234 you may get warnings since IDLock reports on any data leaving the computer including network traffic.