Founders Fund, a San Francisco-based venture capital firm, led a $100m Series C round in Material Security, a company that can protect email accounts even after they have been compromised, with participation from Andreesen Horowitz and Elad Gil. "The fundamental idea behind ‘zero trust’ is that it assumes a bad actor is going to find a way past the perimeter into your systems. But historically, email security has just focused on blocking suspicious messages. Whether it’s a large global organization like News Corp. or a local health care provider, we are still seeing an overwhelming number of email and data security breaches occur on a regular basis. At Material, we begin with the assumption that a hacker is already in your email and limit the damage they can do," Ryan Noon, Material Security CEO.