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July: Yahoo password breach exposes 450,000 user logins
Yahoo, beleaguered by corporate failures and a revolving door of CEOs, came under fire once again after hackers were able to attack the firm's networks by exploiting a flaw and downloading 450,000 plain-text login credentials.
While the breach was not as large as others, such as LinkedIn or Global Payments, but details of the breach were soon reported and it became quickly apparent how easy it was to acquire the vast cache of data. Using a union-based SQL injection attack, it showed just how insecure Yahoo's security was.
Yahoo was subsequently sued for negligence shortly after the hack in a San Jose, California court. The hackers said in a blog post: "We hope that the parties responsible for managing the security of this subdomain will take this as a wake-up call, and not as a threat." A week later, the former Web portal giant gave the all clear and resumed its operations.