In a startup, everyone is a salesperson. For small companies, growing revenue is the number-one concern, so typically the surface-area-to-volume ratio is small—lots of salespeople, little administrative overhead. But as companies grow and mature, the ratio changes, and they undergo a paradigm shift from the exoskeleton to the endoskeleton model.
Administrative functions are brought in-house and there is a greater focus on governance, compliance, and, you guessed it, cyber security. Cyber security becomes a more prominent concern when a company begins to focus less on getting bigger and more on protecting what they already have.