Your Firewall Is Working. Your Employees Are Not: The Human Side Of Iso 27001

By Author: Zoetic Sophie
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A firewall can filter out suspicious traffic. Malware detection: Endpoint security can identify malware. Many unauthorized logins can be stopped with multi-factor authentication. But an organization can experience a security incident when an employee approves a fraudulent request, shares confidential information with the wrong recipient, reuses a password, or uploads business information to an unauthorized application.
Therefore, information security cannot be considered solely the responsibility of IT.
This is supported by the current threat landscape. Some investigations report found 62% of breaches had a non-intentional human element, while social engineering remained a significant breach pattern. Meanwhile, exploiting vulnerabilities became the leading breach entry point, meaning organizations need strong technical defenses as well as effective people-focused controls.
This is where ISO 27001 certification is more than a technical security exercise. ISO/IEC 27001:2022 specifies requirements for establishing an information security management system, taking a risk-based approach that addresses people, processes, ...
... and technology.
What ISO 27001 Actually Says About People?
The ISO 27001 standard is designed to help organizations establish, implement, maintain, and continually improve an information security management system, often called an ISMS. Rather than just IT infrastructure, the approach is holistic, covering people, policies, and technology, according to ISO.
That is a key distinction.
An ISO 27001 ISMS should identify information security risks, determine appropriate treatment, implement controls, and review the effectiveness of those controls. Employees are, therefore, part of the security control environment of the organization.
ISO/IEC 27002:2022 gives information security controls and supplements ISO/IEC 27001. The controls focus on people and include screening, employment responsibilities, awareness and training, disciplinary procedures, confidentiality arrangements, and responsibilities after termination or change of employment.
Your security system should be able to answer questions such as, in practice:
Who knows the secrets?
What are the security responsibilities of this role?
How are workers made aware of those obligations?
What training do the different roles need?
How are access rights changed with a change of responsibility?
What happens when an employee departs?
Reporting security incidents
How can management know if security behavior is improving?
These aren’t IT questions; they are questions of management systems.
Where Employees Create Information Security Risk?
Social Engineering & Phishing
But phishing is still a huge issue, as attackers try to fool people rather than successfully attack the security infrastructure directly.
Phishing is an increasing cybersecurity threat, and the report has created the Phish Scale to reflect the difficulty in detecting different phishing messages and the context of the receiver.
It also shows that the way attackers are operating is evolving. Verizon said mobile-centric social engineering attacks had higher success rates than traditional email-based attacks.
This is an operational problem for organizations that only measure security awareness by annual email training.
An employee may spot a suspicious email but not respond to a scam WhatsApp message, phone call, or text message that seems to come from a manager or supplier.
Credentialing Practice
Employees also introduce risk through the use of weak authentication practices, password reuse, unsafe storage of credentials, or inappropriate sharing of access information.
While technical controls such as MFA can reduce the impact of compromised credentials, they cannot replace secure employee behavior.
Hence, a mature ISO 27001 ISMS combines technical control of access with policies, responsibilities, training and monitoring.
Unintentional Disclosure
Not every security incident is caused by a malicious act.
An employee can send a confidential file to the wrong recipient, upload information to an unauthorized cloud service, leave sensitive information exposed, or use an inappropriate communication channel.
Therefore, the security goal should be to reduce intentional and unintentional information security risks.
Shadow A.I.
Now, artificial intelligence has added another risk for employees.
Employees may use public AI services for drafting, analysis, coding, or research without knowing if company information can be entered into those systems.
Specifically, it highlights the increasing use of generative AI and the security challenges associated with the unauthorized or uncontrolled use of AI.
A good ISO 27001 security program should outline how employees are allowed to use AI tools, what information can be processed via them, and how those requirements are communicated and monitored.
Why Security Awareness Training Alone Is Not Enough?
Sending a cybersecurity training module to employees once a year does not mean that the organization has successfully managed human risk.
1 promotes a lifecycle approach to cybersecurity and privacy learning programs. It emphasizes awareness, education, training, behavior change, and measurement and does not see training as a one-off event.
This offers a useful model for organizations preparing for ISO 27001 certification.
Rather than asking:
"Are employees up to date on security training?
question:
“Were employees showing the security behavior that was expected of them in their jobs?
That is better evidence.
Finance staff may require additional training on payment fraud and business email compromise. Developers might need guidance on secure code and credential management. HR staff may need to put in place stronger controls over employee records. Senior management may need training on approval fraud, executive impersonation, and information-security responsibilities.
Risk should be fed into training.
How an ISO 27001 ISMS Should Manage Human Risk?
An effective information security management system certification program should tie employee behavior to the risk assessment of the organization.
Start with where people interact with information assets.
For each major process, identify:
What information is processed?
Who can view it?
What can go wrong?
What human actions might increase the risk?
What can be done to minimize that risk?
How do you measure control effectiveness?
It can then choose controls that are appropriate for its specific risks.
This is consistent with the risk-based structure of the ISO/IEC 27001. ISO explains that organizations can modify their information security management system to fit their size, needs, objectives, and changing risk environment.
Define Clear Responsibilities
Employees need to understand what security responsibilities are relevant to their role.
For example, a sales professional who handles customer data should know the acceptable requirements for sharing data. A system administrator must understand the responsibilities of privileged access. A manager providing access must be aware of the risks associated with authorization decisions.
ISO/IEC 27002 People controls support a structured approach to workforce-related security risks.
Manage the Employee Lifecycle
Security controls should be mapped to the employee lifecycle.
Organizations may screen appropriately based on legal requirements and risk prior to employment.
Manage responsibilities and confidentiality obligations and awareness and control of access in employment.
When a person changes roles, access should be reviewed as appropriate.
Termination of employment requires immediate action on information security responsibilities and access.
The lifecycle controls are modeled specifically in the ISO/IEC 27002:2022 people-control framework.
Building a Human-Centered ISO 27001 Security Program
It can be based on six areas for a practical program.
1. Awareness of Security
Employees should be aware of the organization’s security policies and their own responsibilities.
2. Role Play
Training should reflect real exposure. A developer, finance employee and administrator do not face identical information-security risks.
3. Control of access
Access should be commensurate with business needs. Appropriate access reviews should be initiated by changes in responsibilities.
4. Incident Reports
Employees must be able to recognize a potential security incident and understand how to report it in a timely fashion.
Difficulty in identifying a reporting process or the punitive nature of the process may discourage early reporting.
5. Culture of security
Management needs to make it clear that early reporting of mistakes is a part of security management.
NIST’s cybersecurity education guidance links awareness and training programs directly to behavior change and security culture.
6. Test
Security teams need to be measuring useful indicators, not just completion of training.
Possible measures are:
Role-based training completion
Results of phishing simulation
Rates of incident reports
Time to report suspected incidents
Repeat training required
Completion of access review
Policy exceptions.
Unauthorized Use of Application
Human error security incidents
Specifically, NIST recommends metrics and evaluation methods as part of a cybersecurity learning program lifecycle.
Preparing Employees for Modern Threats
Security training should be relevant to the threat employees are facing.
AI-created Deception
Generative artificial intelligence can allow attackers to produce credible messages at scale. As such, organizations need to train employees to validate unusual requests, especially those related to credentials, payments, confidential information, or urgent actions.
Voice and SMS Attacks
Phishing awareness training tends to be email-centric.
That is not enough anymore. The 2026 findings show an increasing use of mobile-focused social engineering tactics by attackers.
Employees should be aware of how to verify unexpected requests over a phone call, text message, and messaging platforms.
Shadow AI
Organizations should develop clear policies on approved AI services, sensitive information, confidential data, and intellectual property.
The idea isn't necessarily to stop every employee from using AI. It is to clarify and control acceptable use and unacceptable use.
3rd Party Engagements
Employees are often required to deal with suppliers, consultants, customers and partners. These trusted relationships can be exploited using social engineering.
Training must therefore also include verification procedures for unusual requests from external parties.
What Auditors Look for During ISO 27001 Certification?
A policy document that says employees need to protect information does not pass a certification audit.
Auditors require evidence that the management system has been established and is functioning effectively.
Evidence may comprise, depending on the scope and risk profile of the organization:
InfoSec responsibilities
Competency & Training Records
Security awareness activities
Access control records
Incident reports
Assessments of risk
Risk Treatment Record
Internal Audit Reports
Corrective action records
Outputs of management review
Application statement
Evidence of selected controls
The Auditing Practices Group of ISO/IEC 27001 states the controls in Annex A have to be considered in light of the risk treatment process of the organization. The Statement of Applicability indicates the controls needed and their applicability.
Hence, organizations planning to obtain ISO 27001 certification should not create documentation merely to appease the auditor.
What actually happens should be in your books.
If you provide security training to staff, keep suitable evidence. If access is reviewed, retain evidence of the review. If incidents occur, document how they were handled and what corrective action was taken.
This creates a traceable chain between risk, control, implementation, and improvement.
Practical Human-Risk Readiness Checklist
Prep for an ISO 27001 Audit:
Are information security responsibilities clearly assigned?
Do employees understand the security policies applicable to their position?
Is it trained on real danger?
Are contractors and relevant outsiders covered where appropriate?
Are the joiner, mover, and leaver processes managed?
Are responsibilities being reviewed as access rights evolve?
Can employees report suspected incidents rapidly?
Do you test employees against real-world threats?
Are you measuring security behavior and training effectiveness?
Is human-related information security risk and performance reviewed by management?
If more than one answer is “no,” this may be a bigger problem than a training gap. It could indicate a shortcoming in the organization’s overall information-security management system.
Conclusion: Your Security System Includes Every Person Who Touches Information
A firewall is still a good idea. Endpoint protection still matters. Encryption, MFA, vulnerability management, and secure configuration continue to be key technical controls.
ISO 27001 security, however, requires that organizations treat information security as a systematic management system. ISO/IEC 27001 is a comprehensive strategy with people, processes, and technology, ISO explains.
The human element needs to be managed with the same discipline as technical controls.
Clear responsibilities, relevant training, appropriate access, practical reporting mechanisms, and measurable expectations are needed by employees. Management needs assurance that those controls are effective. Internal auditors must test for implementation, not just the existence of documents.
This approach may lead to a better audit trail and a more workable security program for organizations seeking to get certified for an information security management system.
The aim is not to assume employees will not make mistakes. The ISO 27001 ISMS should be designed to identify foreseeable human errors as risks, mitigate them with appropriate controls, detect them when they occur, and use them as inputs for continual improvement.
This is the human aspect of the ISO 27001 standard and is crucial in developing an information security system that can withstand technical attacks and everyday operational risks.

I am Zoetic Sophie, a consultant in ISO certification consultants company. I do create research-driven content on ISO standards, management systems, cybersecurity and organizational compliance. My work focuses on translating complex requirements into practical guidance that businesses can apply. With an emphasis on current standards, audit expectations and measurable outcomes, the I help organizations understand certification requirements and improve management-system performance.