Why ISO 27001 Skills Are Becoming Critical Across Industries
Thu, 08 October 2026
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A business cannot just imagine and relax, thinking its data is far enough from threats. It needs an organized system to protect it. What proves that? An ISO 27001 Certification. Xantrion data shows that Information Technology (IT) and Software-as-a-service (SaaS) companies most often adopt ISO 27001 certification. The global market value of the certification stands at $23.37 billion for the current year (2026). It could spike to $88.51 billion by 2035 at a CAGR of 15.95%.
BSI (British Standards Institution), Schellman, A-LIGN, and DNV (Det Norske Veritas) are well-known global bodies that issue ISO 27001 certification. For more information, read the blog: “Explore Why ISO 27001 Skills Are Becoming Critical Across Industries”.
If a company vows its security is always in check, why should anyone believe it? Imagine someone says they are a good driver but have never taken a driving test. So there must be a body that assesses abilities and provides proof. Here, in the case of a company, an independent auditor- one who holds no stake in the company comes and examines and confirms that there is an organized and structured way in which it handles data security, rather than just stating a fact.
In October 2005, the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) published the ISO 27001. That is why, if you have noticed, it is often written as ISO/IEC 27001.
The ISO 27001 standard (rulebook) keeps updating with changes in technology and cyber threats. The latest version was updated in 2022. Companies can choose from a list of security protections called Annex A. Moreover, new items have been added to the menu of security protections.
The new protections include safely using cloud services, detecting and monitoring threats, preventing data leaks, and secure coding practices. The update also merged overlapping items. The old version (2013) had 114 protections spread across 14 sections. This could feel a bit disorganized and hard to navigate. The new 2022 version has 93 protections organized into just 4 broader themes.
If a company holds this certification, it proves to customers, investors, and business partners that they can have reasonable assurance that the company’s security is managed properly.
However, remember that obtaining this certification is a company’s personal choice. There are no laws that a company has to adopt. Sometimes, customers demand to see the certification, or even companies themselves willingly obtain the certification to stand out.
A company needs to set up an organized system to handle security. The system is called an ISMS. Remember, to protect a company, ISO 27001 doesn’t just use a single tool.
ISMS is a way that involves many processes a company uses to manage its information security. It is made up of four parts: policies, people, processes, and tools. It also includes the habit of regularly checking what's working and what needs improvement. In this way, security stays current (relevant to the present time) as threats change.
The Four Parts of ISMS
Policies: These are the written rules. For example, if you tell your employees to use a strong password with lowercase letters, uppercase letters, numbers, and symbols, rather than just “123456.” A company's rulebook can also make employees aware of the need to report a suspicious email rather than sitting idle or, worse, clicking the link.
People: This part plays a larger role in protecting security, as employees themselves are responsible for managing it. Employees are told to stick to the company's rules firmly. Moreover, there are members specially assigned to make sure everyone follows the rules. Sometimes a small mistake leads to a blunder (a massive security breach).
Processes: A particular procedure should be carried out following the same steps every time. For example, every time a new employee joins, there are protocols for which files and systems they can access.
Tools: This basically means the equipment and software that are helpful in safeguarding data. Antivirus software, encryption, backups, CCTV, and many more fall into this category.
CIA stands for Confidentiality, Integrity, and Availability. Triad means a group of three things that belong together. Therefore, the CIA Triad means a set of three parts: C, I, and A. The ISO 27001 standard (rulebook) is built around these three goals. Think of them as three legs of a table; if one leg loses its balance, the whole table falls.
Confidentiality
Not everyone can open or access sensitive information. If someone’s job title/position requires them to access certain files, they are approved to do so. For example, a payroll officer can open salary records, but a content writer intern cannot. Companies make sure this is followed by implementing passwords, login permissions, and encryption.
All these help scramble (mix up) information, so that thieves cannot crack it. Confidentiality helps prevent the risk of data leaks and corporate espionage (stealing a company's information through hacking or planting an imposter by a competitor).
Integrity
Information should be correct, and nothing should be missing. The information can be changed and removed/deleted by someone who has permission to do so. Lastly, not only the data, but the system that has the data should be protected. If the system falters, the whole data will get tampered with.
Companies protect integrity by giving permission only to employees who are approved to change and delete certain details. They keep records of who changed the data and when they changed it. There is an option to back up if something changes or gets deleted. Lastly, there are tools that can detect whether a file has suddenly changed.
Availability
Companies should make sure that only authorized users have access to some files or data. There are vital assets in which data is kept or transferred: servers, networks, websites, and devices. Suppose a network issue arises; the data cannot be reached even if it exists. So, availability is threatened by cyberattacks, technical failures, disasters such as fire or power cuts, and human error.
Companies protect it with backups, backup systems and power, disaster recovery plans, and regular maintenance and monitoring.
Risk Assessment: Figure Out What Could Go Wrong
A company needs to honestly look at where it stands related to security before investing in any tools or writing rules. A company needs to analyze both internal and external threats. Internal threats refer to danger from inside, like a careless employee or a resentful employee. External threats refer to threats from outside, like hackers, scammers, and natural disasters.
A company needs to spot weak areas that could easily be exploited, such as outdated software, weak passwords, or an unlocked server room.
The company has to decide what matters the most. Customer records, intellectual property (the company's own inventions, designs, and code), and financial statements get more protection than less important items.
All these practices are not performed only once. Companies need to keep repeating these steps as new threats appear all the time.
Continuous Improvement: Keep Checking and Getting Better
Security isn’t a one-time thing; it has to be regularly checked and fixed if required. In a company, team members themselves check whether a protection is working or not. Top officials such as a team lead or manager look at the results and decide what needs fixing and which tools a company needs to invest in, as per requirements and budget. Based on the findings, the gaps are fixed, and a company updates its protections and rules according to the appearance of new threats.
Regulatory Compliance
There are rules made by the government for companies to protect people’s personal information. GDPR, a European Union Law, protects personal data about a person. Whereas HIPAA is a US law that protects health records. If a company is caught leaking information or not abiding by the laws, they might face a lawsuit or have to pay a hefty fine.
Therefore, having a certification proves that a company is doing its job by following rules so that a person's security is not compromised. In this way, a company will stay out of trouble.
Reduced Human Error
Sometimes a company’s data is compromised not because some master hacker has cracked their execution. If employees of a company use passwords like “123456,” click on a malicious link, or do not lock their system, then the company becomes exposed to hacking. A security standard like ISO 27001 requires companies to train their employees and enforce strict login rules. Things such as using a strong password and setting a login PIN are made mandatory.
Market Trust & Reputation
Suppose a restaurant has a hygiene rating; it is obvious that customers will be drawn to the restaurant and trust it. Similarly, when a company has a certification related to security, customers will believe that it follows all the rules. The company will stand out from competitors. Moreover, customers won’t have to do any kind of self-examination, which saves them time.
There are seven essential clauses of an ISMS (Information Security Management System) that an organization needs to follow if they want to be ISO 27001 certified.
Clause 4: Context of The Organization
What is the company all about? Before buying any tools to protect data, a company should know that they do? Who all depends on them (customers, regulators, partners), and most importantly which part of the business requires security protection. Same like which part of the house requires to put locks for complete safety.
Clause 5: Leadership
The senior management is responsible for backing security in front of everyone. Senior management should not only write, but also assign different employees different roles to take care of security. If the boss of a company keeps mum, no one is going to take security seriously.
Clause 6: Planning
The risks that could hamper a company’s security are listed, such as someone could steal our database or us facing a server crash. These issues are not just listed; the seriousness of each issue is also mentioned. In this way, planning is being carried out to reduce risks or manage them.
Clause 7: Support
A company invests in tools and trained staff. They also provide money. Why so? Because it spreads awareness about security among employees through training, and at the same time they are provided with policies and procedures. Companies make sure that documents like policies, and procedures are up to date.
Clause 8: Operation
Planning on paper isn't enough. This clause is about putting the risk-handling measures into practice and running day-to-day processes securely.
Clause 9: Performance Evaluation
A company tests how well security is performing. Internal audits are performed, like a mock inspection. Not only that, but management is responsible for reviewing the results.
Clause 10: Improvement
When something goes wrong or doesn't meet the standard, the company must correct it, find the root cause, and improve so it doesn't happen again.
ISO 27001 Annex A Controls: Pick The Protections
Control means a protection or a safeguard. Annex A is a menu of 93 protections in four themes. The companies choose from these the ones that match their risks. As discussed earlier:
Organizations must produce and maintain key records, including:
First, a company decides what it is planning to protect. So they go through everything and study what the possible risks are. Based on the risks, a company makes rules and habits, such as who to employ to head the training, backup routines, password rules, and so on.
After this, an independent auditor who has no relation to the company visits. Their job is to check whether the company is truly following its own rules. They may ask certain questions to staff, carefully check documents, and see if people are actually following what the policies say. It usually happens in two stages: first, a check that the paperwork and plan are in place, then a deeper check that everything works in real life.
When an auditor is satisfied with what is presented to them as proof and what they have checked, an ISO 27001 certificate is provided. If an auditor is not satisfied, the company has to try again. The auditor also informs them what needs to be fixed.
Always keep in mind that the certification expires every three (3) years. So, a company should make sure that they run security checkups every day. ISO 27001 lead auditors might come back after every visit for small check-ups (maybe once a year) just to make sure the standard is maintained.
After three years, a company should go through a full audit to renew its certification. It's like how someone renews their driver's license to prove that they are still driving safely.
People who understand ISO 27001 are considered valuable because companies nowadays are dealing with more hackers. Not only that, but customers also need proof that a company is keeping its data safe. Here’s why:
|
Certification Level |
Target Audience |
Core Skills Required |
Professional Prerequisites |
|
Beginners, IT staff, and entry-level compliance teams. |
Basics of information security terms. Understanding the ISMS (Clause 4-10) structure. Familiar with Annex A controls |
None (Open for all) |
|
|
ISO 27001 Lead Implementer |
Project managers, security consultants, and CISOs. |
Designing and deploying an ISMS project plan.Conducting risk assessments and defining risk treatments.Drafting a Statement of Applicability (SoA).Writing security policies and procedures. |
Up to 5 years of work experience (with 2 years in info sec) and 300 hours of ISMS project management. |
|
ISO 27001 Lead Auditor |
Internal auditors, external compliance evaluators, and QC specialists. |
Planning and executing third-party audits per ISO 19011 guidelines.Gathering objective audit evidence through interviews.Identifying and writing nonconformity reports.Leading and managing audit teams. |
Up to 5 years of work experience (with 2 years in auditing) and 200+ hours of audit experience. |
|
Feature |
Foundation Exam |
Lead Implementer Exam |
Lead Auditor Exam |
|
How to take it |
Online, with someone watching you through your computer |
Online with a watcher, or on paper |
Online with a watcher, or on paper |
|
Type of questions |
Multiple choice only |
MCQ’s/longer real-life scenario questions |
Multiple choice, scenario problems, and short written answers about audits |
|
Number of questions |
20 to 40 |
40 to 150 (depends on who runs the exam) |
40 to 80 (depends on who runs the exam) |
|
Time allowed |
1 hour |
2 to 3 hours |
2 to 3 hours |
|
Can you use books? |
No, you must answer from memory |
Yes, you can use the official ISO 27001 standard |
Yes, you can use the official ISO 27001 and ISO 19011 standards |
|
Score needed to pass |
Usually 70% |
Usually 60% to 70% |
Usually 70% overall (some providers also want 40% to 50% in each section) |
|
How long it lasts |
Lifetime |
About 3 to 4 years, and you need to keep learning (earning credits) to keep it active |
About 3 years, and you need to show you've done audit work or pay a renewal fee |
ISO 27001 certification is what companies pursue to stand out. It is not a requirement, but if companies obtain the certification, investors, customers, and businesses won’t hesitate to tie up with them. The certification is proof that a company follows an organized way to manage its security. Moreover, it also proves that a company follows the latest 2022 version, with 7 clauses.
If a company doesn’t have this certification, first it will be hard for someone to trust them. Second, if a malicious emergency occurs out of nowhere, the company will struggle to handle it, as no audits have been run. Although acquiring this certification is a personal choice, it is better to have it to avoid scrambling at the last minute and spending a lot of money to handle the risks.
Nonetheless, similar to the topic, our company Sprintzeal offers courses to get the ISO 27001 Certification. The mode of training is offered in three ways: corporate, classroom, and online. The course runs in 40-plus locations globally. The trainer is not only well acquainted with skills related to a job role, but also has real-world experience. Here are courses related to ISO 27001 certification:
ISO/IEC 27001 Lead Auditor Certification
ISO/IEC 27001 Lead Implementer Certification
1. For how much time is the ISO 27001 certification valid for?
From the date the ISO 27001 certification is issued, it is valid for three years. Year 1 annual surveillance audit is done by the certification body. Year 2: A second annual surveillance audit is done. Year 3, a full recertification audit is done before the three-year expiration date to renew the certificate for another three-year cycle.
2. How much does ISO 27001 Certification cost?
The cost of the ISO 27001 certification depends on the company size. In the United States, for startups, it is $12,000 to $38,000. For a mid-sized company, it is $35,000 to $100,000. The cost can be $100,000 to $250,000 or more for large enterprises.
3. What is the main aim of ISO 27001 Certification?
If a company holds this certification, it proves to customers, investors, and business partners that they can have reasonable assurance that the company’s security is managed properly.
4. What is the salary of ISO 27001 auditors?
An ISO 27001 lead auditor in the United States can earn $102,886 (approximately $49.46 per hour). The salary might start at $80,500, and the highest salary might be $132,500.
5. ISO 27001 Certification or NIST, which one is better?
Neither ISO 27001 nor NIST is universally better; the right choice depends on your business goals, target market, and need for formal certification.
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