The mobile security provider has now raised about $280m, with past investors including Deutsche Telekom and Qualcomm.

Lookout, a US-based mobile security company backed by investors including wireless technology company Qualcomm and telecommunications firm Deutsche Telekom, closed a $150m series F round yesterday.

The latest round was led by investment funds managed by T. Rowe Price, and also featured Morgan Stanley Investment Management, Wellington Management Company, Goldman Sachs. Bezos Expeditions, Mithril Capital Management, Khosla Ventures, Accel Partners, Index Ventures and Andreessen Horowitz.

Founded in 2007, Lookout has created a software offering that uses a mobile intelligence graph…