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Phishing simulation for companies: How to test and improve employee readiness

Over 90% of cyber attacks begin with phishing. A phishing simulation is the most effective way to determine whether your employees can recognise a fraudulent email, and how to teach them to do so.

12 May 2025 · 9 minutes reading · Security Awareness

You invest in firewalls, antivirus software, encryption and security policies. Yet attackers still manage to breach companies time and again, most often not because they have overcome technical defences, but because they have deceived employees. The human factor is and will remain the weakest link in cybersecurity for the long term.

A phishing simulation is a controlled experiment in which you send employees fake phishing emails and measure their reactions. It is the most accurate way to determine the actual level of security awareness in your organisation, and at the same time one of the most effective tools for improving it.

Why Phishing Remains the Most Dangerous Attack Vector

Phishing works because it exploits basic human traits: trust, haste, authority and curiosity. Modern phishing emails are indistinguishable from legitimate communication at first glance. Attackers personalise messages (spear phishing), mimic the email style of specific individuals or companies (business email compromise), create credible copies of login pages and instil a sense of urgency.

The statistics speak clearly: more than 90% of cyber incidents begin with phishing.Yet the average click-through rate on phishing links in companies without regular training stands at 25-35 %. In other words: every third to fourth employee clicks a dangerous link without realising it.

New forms of phishing in 2025

How phishing simulations work: methodology

Professional phishing simulations are not about catching employees and showing them how uneducated they are. The goal is to measure, educate and improve, safely and without damaging workplace relationships.

Phase 1: Preparation and setup

At the outset, the simulation objectives, target employee groups and types of phishing scenarios are defined. Scenarios should reflect real threats faced by the organisation or sector, different scenarios are relevant for the financial sector, healthcare or manufacturing. Scenarios are graded by difficulty: from obviously suspicious emails through well-crafted internal communications to highly targeted spear-phishing messages.

Phase 2: Dispatch and Monitoring

Simulated phishing emails are sent to targeted employee groups. The system automatically tracks key metrics:

Employees who click the link are immediately shown an educational page explaining what happened, how the scam worked and what to focus on next time. This "teachable moment" immediately after the mistake is exceptionally effective for retention.

Phase 3: Analysis of results and reporting

After the simulation ends, the organisation receives a detailed report with results, overall and per department, branch or job role. The results reveal where critical weak points lie: whether certain employee groups, specific time windows or types of scenarios are more at risk.

What to do with the simulation results and how to combine them with training

The results of a phishing simulation are valuable only if followed by specific action. Identified weaknesses form the basis for targeted training programmes.

Structured safety training programme

An effective security awareness programme does not consist of a single annual training session. It operates as an ongoing process combining multiple formats:

A culture of safety, not a culture of fear

The key is that phishing simulations should not create an atmosphere of fear and mutual surveillance. Employees should understand why this is done, and the results should not be used to punish individuals. On the contrary, reporting suspicious emails should be rewarded and celebrated as proactive security behaviour.

Organisations that combine regular simulations with structured training achieve an average reduction in click rates from 25-35 % to less than 5 % after 12 months. This is a measurable risk reduction that directly affects the likelihood of a successful attack.

If you want to launch a phishing simulation for your company or compile a comprehensive security training programme, contact the specialists at SecureOn.czWe are happy to design a programme tailored to the size and needs of your organisation.

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