How to Write a Cybersecurity RFP: Requirements, Evidence and Scoring

A cybersecurity RFP asks vendors to propose a security product or service, such as a detection and response platform, a managed security service or a secure access platform. The structure is the same as any RFP (see how to write an RFP), but you’re buying something that will see sensitive data, run with high privileges and be tested by real attackers. This guide covers what changes, the requirements each security category needs, how security questionnaires fit in, and how to score the answers.

What makes a cybersecurity RFP different

Six things need more attention than they would in an RFP for, say, a CRM.

Start from your threat model, not the product category

Write down what you’re protecting and from what: the attacks that worry you most (ransomware, business email compromise, stolen credentials, insider misuse), the systems and data that matter, and where your current controls leave gaps. Requirements that trace back to a named risk are easier to prioritize and harder for a vendor to talk around. The NIST Cybersecurity Framework (CSF) 2.0 groups security outcomes into six functions (Govern, Identify, Protect, Detect, Respond and Recover), which is a useful checklist for spotting which gap a purchase is meant to close. It describes outcomes, not products, so it won’t tell you what to buy.

Data handling and access

Security tools can collect data that other software never touches: endpoint activity, sign-in records, email metadata, sometimes file contents. Ask what the product collects, where it is stored, who at the vendor can see it and from which countries, which subcontractors process it, how long it is kept, and whether it is used to train AI models that serve other customers. For a managed service, ask what the provider’s analysts can do inside your environment and how every action is logged.

Evidence of controls

A vendor’s own security matters more when the product sits in the middle of your defenses. Ask for independent evidence rather than self-assessment:

• SOC 2 Type II report. SOC 2 is an independent CPA’s examination of a service organization’s controls relevant to security, availability, processing integrity, confidentiality or privacy, under standards set by the AICPA. It is a report, not a certificate. A Type II report tests whether controls operated over a review period; a Type I report looks only at their design at one date. Check that the system description covers the product you’re buying, note the period and any exceptions the auditor found, and read the controls the report expects you, the customer, to run.
• ISO/IEC 27001 certification. ISO/IEC 27001:2022 sets requirements for an information security management system. ISO doesn’t certify companies itself; external certification bodies do. Ask for the certificate, check that it is current, that its scope includes the service you’re buying, and who issued it.

Neither document proves the product is secure. CISA’s Secure by Demand guide separates a vendor’s enterprise security (how it protects its own company) from product security (how it builds the product), and suggests questions about the second, such as whether the vendor publishes a vulnerability disclosure policy, files timely CVE records and includes logging and single sign-on in the base product.

Testing rights

Test security claims before you rely on them. Reserve the right to run a proof of concept on your own machines, including benign attack simulations scheduled with your IT team. For a managed service, run a tabletop exercise or a simulated incident and time the provider’s response. In the contract, ask for a summary of the vendor’s most recent independent penetration test, and agree the terms under which you may test the product yourself.

Incident notification terms

Plan for an incident at the vendor itself. The contract should say how quickly it must tell you about incidents affecting your data or the service, what it must tell you, and how it will cooperate and preserve evidence. Set that deadline with your own obligations in mind. For example, under rules the SEC adopted in 2023, US public companies must disclose material cybersecurity incidents on Form 8-K, and the filing is generally due four business days after the company determines an incident is material. Regulators, customers and insurers may set other deadlines that apply to you, so ask your counsel which ones apply and how they treat incidents at a vendor. NIST CSF 2.0 lists including relevant suppliers in incident planning, response and recovery as one of its supply chain outcomes.

Exit and data return

Security products accumulate value you’ll want to keep: incident history, custom detections, playbooks, retained logs. Ask in the RFP, and settle in the contract, how each is exported, in what format, how quickly, and how the vendor will certify deletion afterwards. If a managed provider supplies the tooling, find out who keeps the licenses, agents and data when the contract ends. NIST CSF 2.0 lists planning for what happens after a supplier relationship ends as part of supply chain risk management.

Writing security requirements vendors can’t blur

Security marketing is full of terms that every vendor can claim. Write requirements that describe an observable outcome, and ask for a response code on every line (standard, configuration, custom, third party, roadmap or not available) so a “yes” says how it’s met.

Group requirements the way RFPhub’s security templates do: functional; technical and architecture; integration; security and compliance; implementation and support; commercial and pricing. Keep the Must-have list short, because each one can eliminate a vendor.

Requirements by security category

Each category has a few requirements that decide most evaluations. Start from the matching template in the cybersecurity RFP templates library and tailor it.

For background on how these categories overlap, Enterprise Techie compares SIEM, XDR and SOAR, EDR and antivirus, and MDR and EDR. If you’re unsure which category you need, issue a short RFI first.

Security questionnaires vs RFP requirements

The two are easy to mix up, which leaves vendors answering the same questions twice. They do different jobs:

When you’re buying a security product, both apply, and some questions sit in each: data location, for example, is a requirement and a risk item. A practical split is to put the requirements and a short list of security Must-haves in the RFP (current SOC 2 Type II or ISO/IEC 27001 evidence, data location, incident notification time, a data processing agreement), and send the full questionnaire only to your two or three finalists. That keeps the RFP readable and gives your security team time to review properly. NIST CSF 2.0 frames this as supply chain risk management: requirements written into contracts, and due diligence before the relationship starts. The vendor selection guide covers due diligence in more detail.

Scoring a cybersecurity RFP

Score the way the RFP evaluation criteria guide describes: a 1-to-5 scale with defined scores, weights agreed before proposals arrive, and a weighted score of score × weight ÷ 100. Two adjustments help with security purchases.

First, base effectiveness scores on the proof of concept rather than the proposal, and hold them back until it’s done. Protection and detection claims are hard to check on paper.

Second, the RFP process guide’s example split (functional fit, technical and security, implementation and support, vendor strength and references, cost) needs reshaping when security is the product. As an example only:

Treat Must-haves, including the security evidence above, as a gate before scoring. A vendor that can’t produce a current SOC 2 Type II report or ISO/IEC 27001 certificate for the service shouldn’t be rescued by a high score elsewhere unless you’ve decided in advance what alternative evidence you’ll accept.

Common mistakes

• Starting from a datasheet. Requirements copied from one vendor’s datasheet describe that vendor’s product. Start from your threat model instead.
• Sending a giant questionnaire to everyone. Vendors put their effort into volume instead of evidence, and your team can’t review every answer properly anyway.
• Reading only the first page of a SOC 2 report. The scope, the period, the exceptions and the controls left to you are where the risk shows.
• Skipping the proof of concept. A demo in the vendor’s environment can’t show how the product behaves on your machines and with your data.
• Leaving SLAs undefined. For services, state when each clock starts and stops, and put the targets in the contract.
• Forgetting exit. Agree how detections, logs and incident history come back to you before you sign, while you still have bargaining power.
• Ignoring the people who’ll run it. If analysts and engineers aren’t on the buying team, the scores will reward features they won’t use.

When your requirements are set, the RFP process guide walks through issuing the RFP, managing questions and reaching an award.

Frequently asked questions

What should a cybersecurity RFP include?

Your environment and the risks the purchase must address, requirements marked Must-have or Nice-to-have with a response code on each, questions that make vendors show evidence, and your scoring criteria and weights. It should also ask for proof of the vendor’s own controls, the data-handling and incident notification terms you need, a proof of concept, and exit terms.

What is the difference between a security questionnaire and an RFP?

An RFP asks whether a product or service meets your needs and is scored against weighted criteria. A security questionnaire asks how a vendor protects your data and access, and is reviewed for risk. When buying a security product you need both, but the full questionnaire can wait for your finalists.

What’s the difference between SOC 2 and ISO 27001?

A SOC 2 report is an independent CPA’s examination of a service organization’s controls, and a Type II report tests how they operated over a period. ISO/IEC 27001 certification shows that an external certification body has assessed the organization’s information security management system against the standard. Ask for whichever your risk team accepts, and check that its scope covers the service you’re buying.

How long does a cybersecurity RFP take?

The example schedules in RFPhub’s security templates run about 11 to 12 weeks from kickoff to contract award, including three weeks for responses and a proof of concept of three to four weeks. Deployment or onboarding follows the award. Allow more time if your security team needs to review finalists’ questionnaires in depth.

What security requirements should every software RFP include?

Even when you aren’t buying a security product, ask where your data is stored and who can access it, for independent evidence of the vendor’s controls, for single sign-on and audit logging, and for incident notification and data return terms. Scale the depth to the sensitivity of the data the software will hold.