According to our web server logs, there aren't many of you who have been using SSLv2 when navigating to a URL that begins with "https" on the ICPSR web site. And that's good. Because this is a protocol which has known flaws for protecting information.
The ICPSR technology team disabled SSLv2 on its production web server last week. Based on the logs we keep, it looks like this change will affect few, if any, web site visitors.