New BlackBerry CEO: 'We Are Here to Stay'

Insists mobile company is not dying off

"Our 'for sale' sign has been taken down and we are here to stay," Chen wrote, mentioning BlackBerry's recent investment from Fairfax Financial as a sign that the business is not doomed to failure.

The CEO also described reports of BlackBerry's death as "greatly exaggerated".

"We're going back to our heritage and roots - delivering enterprise-grade, end-to-end mobile solutions."