Not trusting intranet CAs is irrational. 1) Every employee of every company needs to have some level of trust in their company. They trust their company to mak

Not trusting intranet CAs is irrational. 1) Every employee of every company needs to have some level of trust in their company. They trust their company to make payroll, and they trust their company at a reasonably high level to follow local laws and regulations, including reporting threats and violations against their physical safety. That doesn't mean that employees should trust their employers with their deepest darkest secrets and life savings, or that there aren't different types of trust, just that trust is a spectrum, and arguing that you should fully trust every one of the shadowy public CAs pre-installed in your OS and browser, that you know absolutely nothing about and have not personally vetted nor have personal relationships with, but not the intranet CA your employer operates, is rather clearly an irrational assertion. 2) If you decide not to trust your employer's CA, and your employer has provided you with a machine to access intranet sites, then you clearly cannot trust accessing Internet sites for personal reasons on your employer-provided device, not because the CA cannot be trusted but because it's irrational to distrust the CA but also trust the employer-provided device, which may have a keylogger and other tracking software installed. 3) If you decide not to trust your employer's CA and your employer operates a BYOD environment, then you are free to bring a separate device for work purposes, on which you trust your employer's CA but refrain from accessing personal accounts, instead only accessing personal accounts on devices which your employer doesn't know about.