In the companies I've worked in, they did not permit personal computers in the office (they were okay with mice/monitors etc.) The logic was that it posed too g

In the companies I've worked in, they did not permit personal computers in the office (they were okay with mice/monitors etc.) The logic was that it posed too great a security risk. In one instance for a high profile project I wasn't allowed to even enter the office area with my phone (to prevent people from taking screenshots)