Nearly a billion PCs run this notoriously insecure software. Now Oracle has to clean it up.

Oracle, one of the nation's largest tech companies, is settling federal charges that it misled consumers about the security of its software, which is installed on roughly 850 million computers around the world.

The company won't be paying a fine, and it isn't admitting to any wrongdoing or fault in its settlement with the Federal Trade Commission. But Oracle will be required to tell consumers explicitly if they have outdated, insecure copies of the software — and to help them remove it.