Only 3 percent of Web servers running the open-source version of a secure communications component, OpenSSL, may be using the latest, bug-free software, according to a recent survey by Internet watcher NetCraft. The allows servers to securely communicate with browsers across the Internet.
The survey found that nearly half of polled Web servers ran a version of OpenSSL that could be remotely exploited to bypass the server's security. (The 50,000 servers queried in the study were limited to those computers that returned a valid OpenSSL signature.) Other versions had lesser vulnerabilities. The survey did come with one major caveat: Many Linux distributions that include the software don't update the version numbers, making it falsely appear that the software is vulnerable.