- The Number: 70% and What It Means
- Which Credential This Score Belongs To
- How the Mile2 Exam Is Delivered
- What Mile2 Does Not Publish
- Building a 70% Across 11 Modules
- Managerial Question Style and How to Read It
- Attempts, Combos, and the Cost of a Miss
- After You Pass: Validity and Renewal
- A Domain-Ordered Preparation Sequence
- Frequently Asked Questions
- The C)ISSO passing score is 70%, set by Mile2 Cybersecurity Institute for its Certified Information Systems Security Officer exam.
- The exam is online multiple choice, taken through your Mile2 learning management system account.
- Mile2's Exam Combo and Ultimate Combo each include two exam attempts, which changes how you should plan your first sitting.
- Eleven modules feed the exam, including a European governance and compliance domain many candidates underweight.
The Number: 70% and What It Means
The passing score for the Certified Information Systems Security Officer exam from Mile2 is 70%. That is the headline figure, and it is the one number you can plan around with confidence. If you are searching for a Mile2 CISSO exam threshold, that is the answer: you need to answer roughly seven of every ten scored questions correctly.
A 70% bar sounds forgiving until you remember what the exam covers. The C)ISSO outline spans eleven learning modules, from risk management and cryptography to business continuity and European regulatory compliance. You cannot coast on one strong area. A candidate who is excellent at access control and weak at everything else can still fall short, because the score is aggregated across the whole exam.
For a broader sense of how demanding this threshold feels in practice, see our companion piece, How Hard Is the C)ISSO Exam? Complete Difficulty Guide 2026. For eligibility and prerequisites rather than scoring, read C)ISSO Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Which Credential This Score Belongs To
The acronym "C)ISSO" is the source of a lot of confusion, and passing-score questions are where mixing credentials does the most damage. This article is about one credential only: the Certified Information Systems Security Officer, issued by Mile2 Cybersecurity Institute. The 70% figure applies to that exam.
Two clarifications keep you on the right track:
- Other certifications that share a similar abbreviation have their own bodies, fees, and scoring rules. None of those details apply here.
- Mile2 also offers a separate C)ISSO-A credential. It is a distinct certification and should not be conflated with the standard C)ISSO covered in this guide.
If you are still orienting yourself, our explainers on What Is C)ISSO Certification? and What Does C)ISSO Stand For? cover the naming and scope in more depth.
How the Mile2 Exam Is Delivered
The C)ISSO exam is an online multiple-choice examination delivered through the candidate's Mile2 learning management system account. In practical terms, that means your exam access, training materials, and attempt tracking all live in the same account.
That delivery model has a few consequences for your preparation:
- Familiarize yourself with the platform early. Log in, locate your exam entry, and understand how access is granted before you are mentally committed to a test date.
- Treat the multiple-choice format as a reading exercise. Many items hinge on a single qualifier in the stem, such as "best," "first," or "most appropriate."
- Keep voucher and course windows in view. Mile2 treats course access periods and voucher access periods as separate from the credential's validity, so a lapsed access window is a logistics problem, not a credential problem.
For scheduling specifics, our guide to C)ISSO Exam Dates 2026: Testing Windows, Deadlines & Scheduling walks through the timing side.
What Mile2 Does Not Publish
Being honest about what is and is not known is part of good preparation. Based on Mile2's published outline and FAQ pages, the following is firm:
| Item | What Mile2 states |
|---|---|
| Passing score | 70% |
| Format | Online multiple choice |
| Delivery | Through the candidate's Mile2 LMS account |
| Attempts in combos | Two exam attempts |
| Credential validity | 3 years |
What the sources I checked do not give me is equally important. I will not tell you the number of questions, the time limit, the percentage weight of each domain, or an official pass rate, because those figures are not in the material I verified and any number I offered would be a guess. If you see a site quoting a precise pass rate or domain weighting for this exam, treat it with skepticism and confirm it against Mile2's own pages. Our article on the C)ISSO Pass Rate 2026: What the Data Shows discusses what can and cannot be reliably said about outcomes.
Building a 70% Across 11 Modules
The C)ISSO outline is organized around eleven learning modules, which map to the exam domains below. Because the passing score is aggregate, your goal is to reach a comfortable competence level in every one. The domains are:
- Risk Management
- Security Management
- Cryptography
- Identification, Authentication, and Access Control
- Data Security Management
- Operations Security
- Network Connections, Protocols, Devices, and Designs
- IT and Business Security Architecture
- Software Development Security
- Business Continuity, Disaster Recovery, and Incident Management
- European Cybersecurity Governance and Regulatory Compliance
For a module-by-module breakdown, see C)ISSO Exam Domains 2026: Complete Guide to All 11 Content Areas. Here, the focus is on how the domain list interacts with a 70% cut.
The management-heavy core: Risk Management and Security Management
These two domains frame how the entire exam thinks. A security officer is expected to reason about risk appetite, policy, governance, and accountability before reaching for a technical control.
- Be fluent in the language of risk assessment, treatment options, and residual risk.
- Understand the difference between policies, standards, procedures, and guidelines, and who owns each.
- Expect scenario questions where the correct answer is the managerial action, not the technical fix.
The technical middle: Cryptography, Access Control, Networks, and Architecture
Cryptography, Identification, Authentication, and Access Control, Network Connections, Protocols, Devices, and Designs, and IT and Business Security Architecture reward conceptual clarity over memorized trivia.
- Know what symmetric versus asymmetric encryption, hashing, and digital signatures each accomplish, and when each is appropriate.
- Distinguish identification, authentication, and authorization, and recognize access control models in scenarios.
- Understand how network protocols, devices, and segmentation designs support defense in depth.
- Connect architecture decisions to business requirements, not just technical elegance.
Operations, data, and development: the practical layer
Data Security Management, Operations Security, and Software Development Security test whether you can run security day to day.
- Data classification, handling, retention, and protection across its lifecycle.
- Operational controls such as change management, monitoring, and separation of duties.
- Secure development concepts and how security is built into the software lifecycle.
Resilience: Business Continuity, Disaster Recovery, and Incident Management
This domain rewards candidates who can sequence activities correctly: what comes first when something goes wrong, and how continuity planning differs from disaster recovery and incident response.
- Know the purpose and ordering of business impact analysis, continuity planning, recovery, and incident handling.
- Be able to distinguish recovery objectives and why they drive investment decisions.
The differentiator: European Cybersecurity Governance and Regulatory Compliance
Domain 11 is what sets this exam apart from many general security certifications. It addresses governance and regulatory compliance in a European context, and candidates trained primarily on U.S.-centric material often underprepare for it.
- Do not assume your existing compliance knowledge transfers directly; study the European framing as its own topic.
- Treat this domain as a place where careful reading of Mile2's course material pays off more than general experience.
Managerial Question Style and How to Read It
Because the title is Security Officer, the exam leans toward judgment calls. Many items present a situation and ask for the best next step, the most appropriate control, or the role responsible for a decision. A technically correct answer can still be wrong if it ignores governance, cost, or business context.
Practical reading habits for multiple-choice items of this kind:
- Identify the role you are playing. Are you advising management, implementing a control, or responding to an incident? The role changes the best answer.
- Look for the "first" action. In risk and incident scenarios, sequencing is often the entire point.
- Eliminate answers that skip a prerequisite. If an option assumes an asset has been classified or a risk assessed when the stem says it has not, it is probably wrong.
- Prefer answers aligned with policy and process over ad hoc heroics.
Working through realistic items is the fastest way to calibrate. Our C)ISSO practice test is built to mirror this scenario-driven style, and you can use it to check whether you are consistently clearing 70% before you spend an attempt.
Attempts, Combos, and the Cost of a Miss
Mile2 packages exam access in ways that directly affect how you should think about the passing score. According to Mile2's product and FAQ pages:
- The Exam Combo includes an exam preparation guide, a practice quiz or simulator, and two exam attempts.
- The C)ISSO Ultimate Combo provides one year of learning access and two exam attempts.
Two attempts change the risk calculus. You are not forced into a single high-stakes sitting, but you should still not treat the first attempt as a throwaway. A failed attempt consumes a resource, costs time, and can dent confidence. The better approach is to use the included practice quiz or simulator as a gate: do not book the real exam until your practice results sit comfortably above 70%, with margin to spare for the difference between practice questions and the live exam.
Key Takeaway
Treat the second attempt as insurance, not as a plan. Aim to pass on the first sitting by holding yourself to a practice standard well above the 70% line, and reserve the second attempt for the unexpected.
Training itself is optional. The outline suggests about 12 months of information-systems-management experience and prior C)OL and C)CSSM learning, but these are preparation recommendations rather than mandatory entry requirements. If you choose live instruction, it runs 5 days and awards 40 CEUs. For exact pricing, which varies by package, read C)ISSO Certification Cost 2026: Complete Pricing Breakdown and confirm current figures with Mile2 directly.
After You Pass: Validity and Renewal
Clearing 70% earns a credential that is valid for 3 years. Keeping it active requires one of two routes:
- Continuing-education route: document 60 CEUs during the 3-year period, pay the renewal fee, and complete the applicable ethics and policy acknowledgments. Mile2's FAQ lists the U.S. CEU-route renewal price as USD $200.
- Re-examination route: pass the current certification examination again.
Annual Mile2 membership is not required to renew. One detail worth remembering: course and voucher access periods are separate from credential validity, so a study-access window ending does not shorten the life of a credential you have already earned.
If you are weighing whether the effort and ongoing maintenance are justified, our analyses in Is the C)ISSO Certification Worth It? Complete ROI Analysis 2026 and C)ISSO Salary Guide 2026: Complete Earnings Analysis lay out the career side without inflated claims.
A Domain-Ordered Preparation Sequence
Rather than a generic study plan, here is a sequence tied to how the C)ISSO domains build on each other. Start with the managerial frame, add the technical layers, then close with the domain most candidates neglect. A broader walkthrough lives in our C)ISSO Study Guide 2026: How to Pass on Your First Attempt.
Governance foundation
- Risk Management and Security Management, because every later domain assumes this vocabulary.
- Practice distinguishing policy, standard, procedure, and guideline.
Technical controls
- Cryptography, then Identification, Authentication, and Access Control.
- Pair each concept with a scenario where you would choose it.
Infrastructure and data
- Network Connections, Protocols, Devices, and Designs, plus IT and Business Security Architecture.
- Data Security Management and Operations Security.
Lifecycle and resilience
- Software Development Security.
- Business Continuity, Disaster Recovery, and Incident Management, focusing on sequencing.
European compliance and full review
- European Cybersecurity Governance and Regulatory Compliance as a dedicated study block.
- Timed practice sets across all eleven domains, targeting scores clearly above 70%.
For a compressed final pass, our C)ISSO Cheat Sheet 2026: One-Page Review of Must-Know Facts is useful in the last days before your attempt. And once you are consistently scoring well, you can browse C)ISSO jobs to see how the credential is positioned with employers.
Frequently Asked Questions
The passing score for the Certified Information Systems Security Officer exam from Mile2 is 70%. The exam is an online multiple-choice test taken through your Mile2 learning management system account.
Mile2's Exam Combo and the C)ISSO Ultimate Combo each include two exam attempts. Confirm the exact terms on Mile2's product pages when you purchase, since packaging can change.
No. Mile2 training is optional. The outline suggests about 12 months of information-systems-management experience and prior C)OL and C)CSSM learning, but these are recommendations rather than mandatory requirements. Optional live training runs 5 days and awards 40 CEUs.
The credential is valid for 3 years. You can renew by documenting 60 CEUs, paying the renewal fee, and completing the ethics and policy acknowledgments, or by passing the current certification exam. Mile2's FAQ lists the U.S. CEU-route price as USD $200, and annual membership is not required.
Yes. Domain 11, European Cybersecurity Governance and Regulatory Compliance, is one of the eleven domains, so plan dedicated study time for it rather than assuming general compliance knowledge will carry you.
The 70% line is simple to state and easy to underestimate. Cover all eleven domains, use practice results to decide when you are ready, and treat your included attempts as a safety net rather than a strategy. For more on the credential itself, see C)ISSO Certification and C)ISSO Training, then test your readiness against the full C)ISSO practice exam.