Three pure-play companies who are focused exclusively on hot segments in the rapidly growing cybersecurity industry put up big numbers in the recent quarter. Proofpoint (NASDAQ: PFPT) grew 44 percent in Q3. Cybersecurity Stock Report published quarterly by Cybersecurity Ventures. Two big guns in the space — Cisco and IBM — both saw a decline in their fiscal Q3, but grew their security revenues by 11 percent apiece. As a whole, publicly traded cybersecurity firms grew by more than 11 percent in the quarter.”]