Google blame Badware.org here is badware.org's resonse.
http://blog.stopbadware.org/2009/01/31/google-glitch-causes-confusion (StopBadware.org - Google glitch causes confusion)
Google glitch causes confusion
Posted by Maxim Weinstein 2 hours ago
This morning, an apparent glitch at Google caused
nearly every [update 11:44 am] search listing to carry the "Warning! This site may harm your computer" message. Users who attempted to click through the results saw the "interstitial" warning page that mentions the possibility of badware and refers people to StopBadware.org for more information. This led to a denial of service of our website, as millions of Google users attempted to visit our site for more information. We are working now to bring the site back up. We are also awaiting word from Google about what happened to cause the false warnings.
[Update 12:31] Google has posted an
update on their official blog that erroneously states that Google gets its list of URLs from us. This is not accurate. Google generates its own list of badware URLs, and no data that we generate is supposed to affect the warnings in Google’s search listings. We are attempting to work with Google to clarify their statement.
[Update 12:41] Google is working on an updated statement. Meanwhile, to clarify some false press reports, it does not appear to be the case that Google has taken down the warnings for legitimately bad sites. We have spot checked a couple known bad sites, and Google is still flagging those sites as bad. i.e., the problem appears to be corrected on their end.
For more information about how the process works and the relative role that Google and StopBadware.org play, please see our http://stopbadware.org/home/clearinghouse (Clearinghouse page) or http://www.stopbadware.org/home/faq#partnerwarnings-involved (this question) in our http://www.stopbadware.org/home/faq (FAQ).