Oracle updates Java, security expert says it still has bugs BOSTON (Reuters) - Oracle Corp released an emergency update to its widely used Java software for surfing the Web on Sunday, days after the U.S. government urged PC users to disable the program because of a bug it said made computers vulnerable to attack by hackers. Java security expert Adam Gowdiak, who has discovered several bugs in the software over the past year, said that the update from Oracle leaves unfixed several critical security flaws. "We don't dare to tell users that it's safe to enable Java again," said Gowdiak, a researcher with Poland's Security Explorations. An Oracle spokeswoman declined to comment on Gowdiak's analysis. Oracle said on its security blog on Sunday that its update fixed two vulnerabilities in the version of Java 7 for Web browsers. It said that it also switched Java's security settings to "high" by default, making it more difficult for suspicious programs to run on a personal computer without the knowledge of the user. Analysts estimate that it may be used on more than 1 billion machines around the globe. That has enabled them to commit crimes from identity theft to making infected computers part of an ad-hoc networks that used to attack websites. Oracle said that the flaws only affect Java 7, the program's most-recent version, and versions of Java software designed to run on browsers. Reporting by Jim Finkle; Editing by Diane Craft