For those of you concerned with security, you might want to opt out
of Yahoo's "research".
Take a look at their updated privacy statement:
http://privacy.yahoo.com/privacy/usAlso significant about this is the following statement from the above
referenced Yahoo policy page:
"Note: This opt-out applies to a specific browser rather than a
specific user. Therefore you will have to opt-out separately from
each computer or browser that you use."
Jon