Seed investor GV co-led a $15.5m round for the internet-of-things security technology provider that will go to expanding headcount.

GV, a corporate venturing arm of internet and technology conglomerate Alphabet, co-led a $15.5m series A round for US-based networking cybersecurity technology developer Censys on Wednesday.

The round was co-led by Decibel, an independent venture capital firm launched by networking equipment manufacturer Cisco, and included VC firm Greylock Partners.

Censys has developed a cybersecurity software product that searches the internet for devices connected to a client’s network that may be operating without use of a firewall, therefore making them…