
Introduction
Phishing attacks account for over 80% of reported security incidents in organizations today, making employee awareness a critical line of defense. A free phishing simulation allows companies to safely mimic real-world attacks, identify vulnerabilities, and strengthen their security posture without breaking the bank. In this article, we’ll explore the best free phishing simulator tools, outline a step-by-step approach for conducting a simulated phishing test, and share actionable tips you can implement immediately to reduce risk.
Why Simulated Phishing Tests Matter
Assessing Human Vulnerabilities
Cybercriminals exploit human error more than software flaws. According to the Wikipedia entry on phishing, up to 30% of phishing emails are opened by targeted users, and 12%—on average—click malicious links. A simulated phishing test reveals which employees are most susceptible, enabling tailored training.
Measuring Security Awareness Over Time
- Baseline Metrics: Simulations establish click-through rates and credential submission percentages.
- Progress Tracking: Repeat tests help measure the effectiveness of training initiatives.
- Reporting to Stakeholders: Quantifiable data supports budget requests for advanced security tools.
Top Free Phishing Simulation Tools
Several open-source and free-tier platforms can kickstart your phishing security program. Below are three popular options:
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GoPhish
A fully open-source phishing framework, GoPhish offers intuitive campaign setup and real-time reporting. Key features:
- Drag-and-drop email/template builder
- Automated campaign scheduling
- Custom landing pages for credential capture
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King Phisher
Designed for phishing awareness and penetration testers, King Phisher supports multi-server campaigns and detailed analytics. Pros:
- Modular phishing modules
- Integration with SMTP servers
- Python-based extensibility
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PhishER Free Edition
While not entirely free, the PhishER Free Edition by KnowBe4 offers limited simulated phishing to small teams.
Implementing a Free Phishing Simulation Program
Step-by-Step Guide
- Define Objectives: Determine if your goal is to measure click rates, credential submissions, or module completion.
- Choose a Tool: Evaluate the features, deployment complexity, and reporting capabilities of each free phishing simulator.
- Build Realistic Templates: Customize emails to mimic real business communication—HR announcements, IT alerts, vendor invoices.
- Segment Employees: Group staff by department or risk level to tailor campaigns.
- Launch Simulated Attack: Schedule the campaign during regular business hours for realistic results.
- Track Engagement: Monitor who opens, clicks, or submits credentials through your simulation dashboard.
- Provide Immediate Feedback: Redirect users who click to a training resource or brief questionnaire.
- Analyze and Report: Generate executive summaries highlighting key metrics and recommended improvements.
- Reinforce with Training: Offer follow-up sessions or micro-learning modules based on test outcomes.
- Repeat Quarterly: Maintain momentum and demonstrate security culture progress.
Integrating PhishDef with Your Simulated Phishing Test
While open-source and free tools are a great starting point, integrating a specialized service like PhishDef can elevate your security program. PhishDef offers automated simulated phishing campaigns, detailed user scoring, and guided remediation—all managed through an intuitive dashboard.
- Seamless Deployment: Cloud-based, no on-premise servers needed.
- Ready-Made Templates: Hundreds of professionally designed email templates updated with current threat intelligence.
- Actionable Reporting: Drill down to user-level insights and compliance dashboards.
By combining free tools for initial testing with PhishDef’s advanced capabilities, you can scale your program as your organization grows.
Real-World Case Studies
Case Study 1: Small Financial Firm
- Baseline click rate on free simulation: 26%
- Intervention: Monthly simulations using GoPhish + on-demand training
- Outcome after six months: Click rate dropped to 8%, reducing potential data breaches by 70%
Case Study 2: Mid-Size Healthcare Provider
- Implemented King Phisher for targeted phishing campaigns
- Initial credential submission rate: 14%
- Integrated PhishDef for advanced reporting and executive dashboards
- After quarter two: Submission rate fell to 4%, saving an estimated $150K in breach containment costs (Forbes Tech Council)
Key Takeaways
- A free phishing simulation is an affordable way to benchmark employee risk.
- Open-source tools like GoPhish and King Phisher offer robust features for zero-cost testing.
- Follow a structured, repeatable process: Define objectives, customize templates, launch campaigns, and analyze results.
- Complement free simulations with services like PhishDef to automate, scale, and deepen insights.
- Regular testing and training can reduce click rates by up to 70% within six months.
Next Steps & Call to Action
Ready to enhance your security testing program? Start with a free trial of PhishDef today to access professionally crafted phishing campaigns, automated reporting, and user-specific remediation. Empower your team with the tools they need to recognize and resist phishing threats. Sign up for your free trial now and see the difference a comprehensive phishing simulator can make.


