The vulnerability is in Java-based software known as "Log4j" that large organizations, including some of the world's biggest tech firms, use to configure their applications. Apple's cloud computing service, security firm Cloudflare and one of the world's most popular video games, Minecraft, are among the organizations that run Log4j, according to security researchers. The vulnerability can offer a hacker a relatively easy way to access an organization's computer server. From there, an attacker could devise other ways to access systems on an organization's network. Security experts say that the fallout from the software flaw could continue for days and weeks...