I have worked with a lot of early-stage companies through consulting engagements. A common thing I hear is: "We think we need to hire a CISO." Almost none of them actually do. What they needed was fundamentally different from what a CISO provides, and misunderstanding that distinction was costing them time, money, and focus.
A CISO is a strategic executive. They set organizational security vision, manage risk at the board level, navigate regulatory landscapes, build and lead security teams, and interface with auditors and regulators. That is critical work. But if you are a 15-person startup that just closed your Series A, you do not have an organizational security vision. You barely have an organization.
At this stage you need exactly three things. First, MFA on everything. Every SaaS account, every cloud console, every email account. This takes an afternoon to implement and prevents the most common attack vector against startups: credential compromise. Second, you need a password manager rolled out to the entire team. Not "we recommend using one." Mandatory. Company-managed. Third, you need your cloud environment configured with basic security hygiene: no public S3 buckets, no root account access keys, IAM roles with least privilege.
You do not need a CISO for this. You need an engineer who cares about security to spend a week setting things up properly. Or you need a consultant for 10 hours.
Once you have paying customers and a growing team, the requirements shift. You need access reviews. When someone leaves the company, their access to every system needs to be revoked within 24 hours. You need a basic incident response plan, not a 50-page document, but a clear set of steps: who gets called, what gets shut down, how you communicate to customers. You need security training for your team, even if it is just a quarterly lunch-and-learn about phishing and social engineering.
You probably also need to start thinking about compliance. If you are selling to enterprises, SOC 2 questions are coming. Start building the habits now rather than cramming later. Get your policies written. Start collecting evidence. Make security part of your engineering process.
You still do not need a CISO. You need a fractional security leader or a strong consultant who can come in two days a month, set direction, review your posture, and give your engineering team actionable work.
By the time you hit Series B, you probably have 50 to 100 employees, multiple products, enterprise customers with real security requirements, and enough complexity that security decisions have strategic implications. Now a CISO starts to make sense. You need someone who can sit in the leadership team, weigh security trade-offs against business priorities, and build a program that scales with the company.
But even here, there is a trap. Many startups at this stage hire a CISO and expect them to also be the hands-on security engineer, the compliance manager, the incident responder, and the security awareness trainer. That is five jobs. You cannot hire one person and expect them to do all of it well. If you are hiring a CISO, you also need to budget for at least one or two security engineers to actually implement what the CISO designs.
For most of the companies I work with, the right answer is a fractional security leader. Someone who provides CISO-level thinking at a fraction of the time and cost. Here is what that looks like in practice.
Two to four days per month, a fractional leader comes in and reviews your security posture. They look at what has changed since last month: new systems deployed, new employees onboarded, new features shipped. They identify risks and prioritize them. They give your engineering team specific, actionable tasks. They review your compliance progress. They help you answer security questionnaires from potential customers.
This costs a fraction of a full-time CISO salary. A good CISO commands $250K to $400K in total compensation. A fractional engagement runs $5K to $15K per month depending on scope. For a startup that needs strategic security guidance but does not yet need a full-time executive, this is the right trade-off.
Across 20+ engagements, I see the same problems at nearly every early-stage company. If you do nothing else, fix these five things:
Here are the signals that tell me a company is ready for a full-time security hire. Not all of them need to be true, but if three or more apply, it is time.
Even then, your first security hire should probably not be a CISO. Hire a senior security engineer first. Someone who can implement, operate, and improve your security program day to day. Then, once you have enough security work and enough organizational complexity, bring in the CISO to lead the function.
Hiring a CISO too early is a misallocation of resources. You are paying an executive salary for work that does not require an executive. Worse, you are giving yourself the false sense that "security is handled" when what you really have is one person trying to do five jobs at once.
Start with good hygiene. Move to fractional leadership. Hire a security engineer when the workload demands it. Bring in a CISO when the organization needs strategic security leadership at the executive level. That is the path that works. I have watched it work over and over again.