Google said Wednesday it has fixed a problem in its widely used email program that allowed hackers to break into peoples Gmail accounts to read messages and pose as legitimate email users. Security researchers in Spain exposed a flaw in the way Google authenticates its users, allowing the breach in the system that counts more than 5 million users. The process for exploiting Gmail was posted to a hacker web site." From the article: "Google spokesperson Sonya Boralv said only users who supplied information to the hackers were potentially vulnerable. 'We looked into this quickly and learned that it can only occur if a user knowingly provides their credentials,' Ms. Boralv said. 'Nevertheless, we have made some modifications to Gmail to help prevent these kinds of issues.'