It's tax time, and if you're thinking of using a web-based tax return preparation program, here's an expert with some one-word advice:

Q: In 2002, you advised against using Web-based tax-preparation software, writing, "Your tax data are highly sensitive and confidential, and I think the Web is just too susceptible to hackers and crooks to make it a fitting repository for such information." Do you continue to have these concerns?

A: Yes. If anything, the incidence of identity theft and other security problems on the Web have grown worse since 2002. I am not criticizing the tax-preparation companies, which I assume have good security. And I am not advising people against normal e-commerce, or the use of credit cards online. But I would be personally loath to put the broad and deep financial information required for a tax filing on a server controlled by someone else and connected to the Internet. I would instead download or buy traditional tax-preparation software, which keeps your data on your own hard disk.