PerimeterX secures $43M to protect web apps from bot attacks

We know by now that modern website attacks are typically automated, as armies of bots knock on doors until they inevitably find vulnerabilities and take advantage. PerimeterX, a San Francisco startup wants to protect sites from these automated assaults. Today, it announced a $43 million Series C.
The round was led by Scale Venture Partners . New investor Adams Street Partners joined existing investors Canaan Partners, Vertex Ventures and Data Collective in the round. Ariel Tseitlin, a partner at