I'm surrounded by a talented team of industry leaders, including our new leaders for enterprise, corporate development and strategic planning, and marketing. In the coming weeks, I'll continue to build out my leadership team with those who have the skills and passion to get BlackBerry back on the path to profitability.

It was important to make swift and impactful changes to ensure that our customers' investments in BlackBerry's infrastructure and solutions are secure. With these changes, I've made a commitment to be transparent with my strategy and how I will execute.

The team's first priority was to focus on our core business drivers, so we had to move to a new operating unit structure: Enterprise Services, Messaging, QNX Embedded business and the Devices business. This structure will drive greater focus on services and software, establish a more efficient business model for the Devices business, and support each unit's transformation and growth objectives.

(Read more: BlackBerry to be profitable by 2016: John Chen)

When it comes to enterprise, we're still the leader. Don't be fooled by the competition's rhetoric claiming to be more secure or having more experience than BlackBerry. With a global enterprise customer base exceeding 80,000, we have three times the number of customers compared to Good, AirWatch and MobileIron combined. This makes BlackBerry the leader in mobile-device management.

Many in the regulated industries—those with the most stringent security needs—still depend solely on BlackBerry to secure their mobile infrastructure. For governments, BlackBerry cannot just be replaced—we are the only MDM provider to obtain "Authority to Operate" on U.S. Department of Defense (DoD) networks. This means the DoD is allowed to use only BlackBerry. Across the globe, seven out of seven of the G7 governments are also BlackBerry customers.

Our popular messaging service, BBM, is also renowned in regulated industries for being the most secure mobile-messaging service, and consumers love it, too. In the last 60 days, more than 40 million new iOS and Android users have registered to use BBM. We will continue to invest in this popular service and build out its features and channels, with plans to turn it into a revenue stream in the coming years.

(Read more: BlackBerry CEO: 'We're very much alive, thank you')