> For the complete documentation index, see [llms.txt](https://docs.stoik.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stoik.io/human-security/phishing.md).

# Phishing simulation

The Phishing simulation trains your employees to spot fraudulent emails, with a learning-by-doing approach:

* Fake phishing emails are sent regularly (weekly, monthly, or quarterly) to train employees to identify fraudulent messages.
* Employees who fall for a fake phishing email are automatically redirected to an awareness lesson.

With this approach, 75% of employees who are caught out the first time do not fall for it again.

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><h4><i class="fa-gear">:gear:</i></h4></td><td><h4>Setup</h4></td><td>Sync your employees and enable email delivery.</td><td><a href="/human-security/phishing/setup.md">Setup</a></td></tr><tr><td><h4><i class="fa-paper-plane">:paper-plane:</i></h4></td><td><h4>Launching a campaign</h4></td><td>Choose the rhythm, the audience and the templates.</td><td><a href="/human-security/phishing/campaign.md">Launching a campaign</a></td></tr><tr><td><h4><i class="fa-envelope-open-text">:envelope-open-text:</i></h4></td><td><h4>Templates</h4></td><td>Use the prebuilt library or write your own emails.</td><td><a href="/human-security/phishing/templates.md">Templates</a></td></tr><tr><td><h4><i class="fa-chart-line">:chart-line:</i></h4></td><td><h4>Results and performance</h4></td><td>Track opens, clicks and submitted credentials.</td><td><a href="/human-security/phishing/results.md">Results and performance</a></td></tr></tbody></table>

## What is phishing

Phishing is a fraudulent technique in which a cybercriminal sends an email impersonating a well-known third party (such as Google, Amazon, or Microsoft). Their goal is to trick the recipient into clicking a link or downloading a file in order to steal information, money, or install malware.

## Common phishing techniques

<details>

<summary>CEO fraud</summary>

CEO fraud is a targeted scam in which an attacker impersonates a company executive (often the CEO or CFO) to deceive an employee into making a fraudulent banking transaction.

**How it works**

* Identity theft: the fraudster sends an email (or calls) impersonating a high-ranking employee within the company.
* Emergency scenario: an urgent, confidential, and sensitive situation (an acquisition, a payment to a strategic supplier, a legal emergency, etc.).
* Psychological pressure: the employee, usually from the accounting or finance department, is pushed to act quickly without following standard procedures.
* Fraudulent transfer: the victim transfers money to an account controlled by the scammers, often located abroad.

**Why it works**

* The email appears credible (professional language, a very similar fake email address, the CEO's signature, etc.).
* The targeted employee is often isolated, under pressure, or intimidated by management.
* The attack is highly targeted: the fraudsters research the company, its executives, and its internal practices.

**Consequences**: significant financial losses, reputational damage, legal liability if protections are not in place.

**How to protect yourself**

* Raise awareness among all employees, especially those in sensitive departments (finance, HR, etc.)
* Implement a strict internal validation procedure for transfers
* Activate technical protections: SPF, DKIM, DMARC, anti-spoofing filters
* Systematically verify any unusual request through a secondary channel (phone, video conference, in person)

To test your team against this attack, see [Payment Fraud Simulation](/human-security/advanced/payment-fraud-setup.md).

</details>

<details>

<summary>Credential theft</summary>

* You receive an email that creates a sense of urgency: an unexpected expense, a suspended account, a password change. By impersonating a known third party, the attacker tries to make you click a link that redirects you to a fraudulent website.
* You enter your credentials on the website and the attacker obtains them: the website looks legitimate, but belongs to the attacker.
* You don't realize you've been attacked: you see an "Incorrect credentials" screen and are redirected to the legitimate website, so the next login works.

</details>

<details>

<summary>Malicious attachments</summary>

This attack is more sophisticated and less frequent. It lets the attacker take control of an employee's workstation, the entry point to the company's IT system.

The attacker tricks you into downloading a PowerPoint, Excel, or Word document and enabling macros, either by email or through a file transfer platform. Once the macros are enabled, the attacker controls the workstation.

</details>

## Best practices

When an email asks you to download an attachment, make a transfer, or enter a password, be vigilant:

* **Check the sender's domain name.** The address may look familiar but be spoofed. Look at the part after `@`: if it doesn't match the real sender letter for letter, it's a phishing attempt.
* **Check the domain name of any website you are redirected to.** A fake website controlled by the attacker does not have the same address (URL) in your browser's address bar.
* **Verify through another channel.** Ask the sender for confirmation by SMS, through customer service, or by going directly to the website in your browser.

To limit the risk:

* **Raise awareness**: 73% of cyberattacks originate from phishing an employee (CESIN).
* **Enable two-factor authentication (2FA)**: stolen credentials are not enough to impersonate a user who has a second factor.
* **Use a password manager**: it checks the domain name of websites asking for credentials, and fills nothing in on a fake one.

## If an employee falls for it

If the employee entered credentials:

* Change the password of the compromised account, and of every other service that uses the same (or a similar) password.
* Enable two-factor authentication on the compromised account.
* Notify Stoïk so we can check that the attacker has not left another way back in.

If the employee downloaded a malicious attachment:

* Turn off the device to limit the spread.
* Notify Stoïk so we can remove the malware and check that it has not spread.


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