You have reached the point where security needs an owner. A customer wants to know who is accountable for your security program, a board or investor is asking who runs risk, or a compliance effort has stalled because nobody at your company can make the call on what to build and what to accept. The natural answer is to hire a Chief Information Security Officer. Then you see the salary, and you start asking whether you need a full-time CISO at all, or whether a fractional one would do the same job for a fraction of the cost.
This is the vCISO vs full time CISO question, and it deserves a real answer rather than a sales pitch. This guide compares a vCISO (virtual or fractional CISO) against a full-time, in-house CISO on the terms that actually decide it: what each role does, what each is genuinely good at, where each falls short, what each costs, and the signals that tell you it is time to switch from one to the other. We are not going to tell you a vCISO is always the answer. For some companies the right move is a full-time hire, and for others it is a vCISO for two more years. The honest goal is to help you match the role to where your business actually is.