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Insider Risk

What it is and why it matters

Last Updated 04 January 2024

People are an organisation's biggest asset, however, in some cases, they can also pose an insider risk. As organisations implement increasingly sophisticated physical and cyber security measures to protect their assets from external threats, the recruitment of insiders becomes a more attractive option for those attempting to gain access

Take a closer look

Whether you're a seasoned professional or new to the topic, there are things you can do to help get fully prepared. With research, partnerships and intelligence, NPSA guidance provides a recommended programme, tools and guidance, to help organisations prevent, manage and recover from an insider event

Be Insider Risk Ready

If you're new to the topic, get started here with this helpful insider risk overview

Insider Risk

Access NPSA’s tools and resources here to increase your insider risk-readiness

Be Insider Risk Ready

NPSA encourages businesses to ‘Be Insider Risk Ready’ under its new umbrella campaign, which seeks to raise awareness of the consequences of an insider event.

Insider Risk posters

Download the Insider Risk Ready umbrella campaign materials

Learn the Basics

Quick-start your understanding with these easy explainers

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Insider risk explained

Speak a common language with our Insider Risk definitions 

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Personnel security: a 6-step guide

Stay secure throughout the employee journey

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Ten steps to risk assessment

Ten important steps to mitigate insider risk


Step-by-step advice to implement protective security measures

NEW Insider event guidance

Insider Events - Communications Guidance

Learn about the consequences of organisational and business leaders not mitigating against insider events

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Ongoing personnel security

Help your organisation develop and plan effective practices for countering the insider threat

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Employment screening

Deter, detect and deny those seeking to harm your organisation 

Education and Resources

Improve your insider risk readiness with these practical materials 

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Insider Risk Mitigation Framework

What components to include in an effective insider threat programme

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Digital learning modules

Springboard your learning through these bitesize learning modules 

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Insider crisis simulations

Build collaboration and readiness, by practising your team’s insider response

What's new

Stay abreast of the latest developments in insider risk 

NPSA launches Be Insider Risk Ready


NPSA encourage businesses to “Be Insider Risk Ready” under a new umbrealla campaign being launched this week

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Are you ready for an insider event?


Test your team’s crisis preparedness with new insider event crisis scenarios

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NPSA launches new communications guidance


Crisis communications best practice to reduce the impact of insider events with actions to take before, during and after an event. 

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NPSA changes insider risk definitions


Build a common understanding with new insider risk terminology. 

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If you have people, you have an insider risk: A David Smith case study


Insider events are increasing. Learn from recent examples to help build your readiness.

David Smith
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