#6 RIM CEO

The company which is already treading onto a rough patch with loss of market share, weak financial results and huge delay in new products had to face another whip. RIM had a three-hour network outage in September in Europe and Africa that affected about 6 percent of customers and prompted CEO Thorsten Heins to apologize: "I want to apologize to those BlackBerry customers in Europe and Africa who experienced an impact in their quality of service earlier this morning. The BlackBerry service is now fully restored and I can report that no data or messages were lost. Up to 6 per cent of our user base may have been impacted. Preliminary analysis suggests that those customers may have experienced a maximum delay of 3 hours in the delivery and reception of their messages. We are conducting a full technical analysis of this quality of service issue and will report as soon as it concludes. I again want to apologize to those customers who were impacted today."

#5 Amazon cloud crashes

It’s not Amazon Wed Service’s cloud offering gets noticed for its collapse but the companies whose websites depend on the AWS, and so the first once to apologize. That exactly what happened in October when AWS had an outage following a new hardware installation at one of its northern Virginia data centers.

The Websites like Reddit and Imgur took the first burns, and had to apologize the online visitors for site’s outage. The Amazon however followed up with credits for its customers and a promise to fix the underlying problem, which included over aggressive traffic throttling policy and apologized: "We apologize for the inconvenience and trouble this caused for affected customers. We know how critical our services are to our customers' businesses, and will work hard (and expeditiously) to apply the learning from this event to our services. While we saw that some of the changes that we previously made helped us mitigate some of the impact, we also learned about new failure modes. We will spend many hours over the coming days and weeks improving our understanding of the event and further investing in the resiliency of our services."