Should you be concerned about wireless security? Yes, at least according to Chris O'Ferrell, chief technology officer of wireless technology company Netsec. He says you should ask any organization you see using a wireless network--including your bank, the airports you visit, . . .

Should you be concerned about wireless security? Yes, at least according to Chris O'Ferrell, chief technology officer of wireless technology company Netsec. He says you should ask any organization you see using a wireless network--including your bank, the airports you visit, and even your tax preparer--if it uses 802.11b and if it employs security measures. Why? Because it could be broadcasting your personal information to anyone equipped with an 802.11 device and sniffing software such as NetStumbler, both of which are becoming more common among malicious users.

Around the time of year, the privacy of your tax information is particularly relevant. You may have noticed that from January through May, large tax-preparation companies hire extra accountants who set up temporary offices around town.

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