10 Notable Cloud Outages And What Caused Them: Page 5 of 12

It lasted less than an hour, but affected nearly 1 million users. In January 2009, Salesforce.com, the grandfather of cloud computing took a 40 minute hit during the height of the work day, leaving users without access to applications and data needed for customer information and transactions. As customers tried to access their accounts, they either couldn't access the site at all or were met with an error message.