Contractors and Freelancers: Should You Include Them in Cyber Training?

In the vast majority of modern organisations, the traditional perimeter of the corporate network has effectively vanished. Internal teams collaborate on a daily basis with freelance software engineers, specialist consultants, staff augmentation agencies and managed service providers. These external contributors frequently hold privileged access: named accounts on the corporate VPN, corporate email inboxes, access to internal Slack channels, or direct write permissions on production code repositories.

Yet, when rolling out the annual security awareness programme, an invisible barrier often emerges. Citing administrative overhead, high turnover rates or contractual concerns, third parties are all too frequently excluded from training modules. This operational blind spot creates an ideal entry point for threat actors, who systematically target the most vulnerable links in your value chain.

Why Must External Accounts Follow the Same Awareness Initiatives?#

In summary: External accounts share identical digital working environments and collaborative tools with internal employees. Without shared cyber hygiene habits, a contractor compromised via phishing or social engineering becomes an open doorway for attackers to bypass perimeter defences and move laterally across your network.

To a cybercriminal, a corporate email address issued under your domain holds the exact same value, whether it belongs to a board-level executive or a contractor engaged for a three-week project. As soon as an account is provisioned within your directory, it can serve as a launchpad for further compromise:

• Lateral movement: Once a freelancer's credentials are breached via a phishing campaign, an attacker can leverage the implicit trust placed in internal communications to deceive other employees or extract sensitive data.
• Unmanaged hardware (BYOD): Contractors regularly connect using personal laptops or third-party devices whose security baselines do not mirror your internal standards. Their behavioural vigilance must therefore be exceptionally sharp.
• Unfamiliarity with internal reporting paths: An external specialist does not necessarily know who manages security incidents or how to independently verify an unexpected request for an urgent invoice payment.

Digital hygiene cannot stop at the boundary of an employment contract. Standardising vigilance across internal staff and third-party partners directly shrinks your overall attack surface.

What Do the ISO 27001 and NIS 2 Frameworks Require for Supply Chains?#

In summary: Both the NIS 2 Directive and ISO 27001 demand rigorous supply chain security governance. Organisations must evaluate third-party risks and verify that anyone accessing information assets participates in appropriate security training and applies required safeguards.

Modern regulatory standards explicitly reflect the profound interdependence of enterprise digital ecosystems. Treating third-party risk purely through contractual clauses is no longer sufficient:

Rigorous controls under ISO 27001

Within Annex A of the ISO 27001:2022 standard, Control 5.19 addresses information security within supplier relationships. It requires clear security expectations to be agreed upon and enforced for every external party accessing company assets. Concurrently, Control 6.3 mandates regular information security awareness and training for personnel and relevant external stakeholders.

The NIS 2 Directive mandate

Under the NIS 2 Directive, supply chain risk management forms a fundamental legal obligation. Essential and important entities must thoroughly assess the cyber security practices of their direct suppliers. In practical terms, ensuring that contractors with system access complete your security awareness initiatives serves as demonstrable evidence of operational third-party risk governance.

How Can You Train Third Parties Without Generating Operational Friction?#

Enrolling dozens of temporary contractors or external agencies into standard training platforms quickly becomes an administrative headache: unused platform seats, forgotten credentials, and forty-five-minute e-learning modules that billable professionals understandably resist.

To achieve total coverage without burdening security teams or creating friction for project leads, several practical principles should guide your strategy:

• Rely on micro-learning formats: Bite-sized lessons of two or three minutes fit effortlessly into a contractor's schedule without disrupting deliverables or timesheets.
• Deliver frictionless access: Third parties should not have to navigate complicated onboarding on bloated learning platforms. Access to practical training scenarios should be straightforward.
• Target real-world risks: Focus the educational effort on social engineering, business email compromise, remote device security and multi-factor authentication best practices.
• Maintain momentum across the engagement: Rather than a single compliance checklist completed on day one and instantly forgotten, progressive touchpoints keep protective reflexes top of mind.

Brain Security built Cyber Journey precisely to satisfy this need for operational simplicity. This progressive cyber awareness path combines short micro-lessons with an interactive arcade quiz. Implemented alongside our expert team, it helps you roll out a unified culture of vigilance across both internal personnel and external partners, without technical hurdles or heavy administrative work.

BRAIN SECURITY PRODUCT IN ACTION · Cyber Journey

Integrate Third Parties into Your Cyber Governance Today#

Modern cyber attacks routinely exploit relationship trust and technical interconnections. Treating external contractors as second-tier users when it comes to cyber security awareness exposes your entire estate to preventable breaches.

By aligning external partners with internal security standards, you harden your supply chain whilst addressing the direct expectations of ISO 27001 and NIS 2 auditors.

Looking to build a flexible acculturation roadmap tailored to your hybrid workforce and external partners? Book a call with our team to design an engaging, practical training journey together.

Further reading: related articles and Brain Security solutions#

Related articles on this topic

• Cyber Governance and Employee Trust: Tracking Progress Without Surveillance (Compliance (NIS 2, DORA, ISO)) : Discover how to track cybersecurity awareness and GDPR compliance without individual surveillance, using a positive, collective approach.
• Cyber Resilience Act (CRA): Embedding Security by Design in Engineering Teams (Compliance (NIS 2, DORA, ISO)) : Align software engineers and product managers with the Cyber Resilience Act. Discover key Security by Design practices to build resilient products.
• TISAX Certification in the Automotive Industry: Structuring Security Awareness for R&D and Manufacturing (Compliance (NIS 2, DORA, ISO)) : Achieve your TISAX (VDA ISA) audit goals. Discover how to train R&D and plant teams to protect prototypes effectively using engaging, gamified formats.
• Ebbinghaus Forgetting Curve: How to Embed Lasting Cyber Reflexes (Gamification) : Overcome the forgetting curve in cybersecurity training through micro-learning and spaced repetition to build instinctive defensive habits.

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