Phishing basics

What is a phishing simulation?

Updated

Short answer

A phishing simulation is a harmless practice email, built to look like a real scam, that an organization sends to its own staff. It shows who clicks, who reports it and who ignores it, then gives a short lesson to anyone who falls for it. The aim is practice and feedback, not punishment, so people get better at spotting and reporting real phishing.

What is a phishing simulation, in plain terms?

A phishing simulation is a controlled test where an organization sends its own employees an email that looks like phishing but is safe. The link goes to a training page instead of a fake login, and any attachment is harmless. Nobody loses a password or money.

It works like a fire drill. People get to practise the right response (pause, check, report) in a setting where a mistake costs nothing. Microsoft describes simulations in its own tool as campaigns that deliver realistic but harmless phishing messages to users.

Simulations are usually one part of a wider security awareness program. The other parts are short lessons, a clear way to report suspicious email, and technical controls that stop most phishing before it reaches anyone.

How does a phishing simulation work, step by step?

Most simulations follow the same basic cycle, whether a business runs them itself or a managed service provider (MSP) runs them on its behalf.

  • Pick the people: usually everyone with a mailbox, kept current by syncing the staff list from Microsoft 365 or another directory.
  • Choose a scenario: a message modelled on a common real scam, such as a shared document, a delivery notice or an invoice query.
  • Allow delivery: the email filter is told to let simulation messages through (in Microsoft 365 this is the advanced delivery policy).
  • Send and watch: the platform records who opened a link, who reported the message and who did nothing.
  • Teach in the moment: anyone who clicks sees a short explanation of the clues they missed, right when the lesson is most memorable.
  • Report and repeat: results go into a report for the business owner, and a new scenario goes out next cycle.

What does a phishing simulation actually measure?

The headline number is usually the click rate: the share of recipients who opened the link. It is useful, but it is not the whole picture, and on its own it can mislead.

The UK National Cyber Security Centre (NCSC) suggests that security metrics should include successes, such as how many people reported a phishing email, not just how many clicked. A rising report rate shows staff are acting as an early warning system, which is the behaviour that helps most during a real attack.

  • Click rate: who opened the link in the practice email.
  • Report rate: who flagged the message using the report button or the agreed process.
  • Repeat clicks: who clicks across several simulations, which points to where extra support is needed.
  • Lesson completion: who finished the follow-up training.
  • Trend over time: whether the numbers improve across months, which matters more than any single result.

What makes a phishing simulation fair rather than a trap?

A simulation that embarrasses people will make them less likely to report a real mistake. The NCSC states plainly that blaming users for clicking on links doesn't work, and warns that simulations can erode trust between staff and the people running security.

The NCSC also notes that punishing people for clicks can create legal risk, and advises checking with HR before running simulations. In practice, a fair program follows a few simple rules.

  • Tell staff that practice emails will happen, without saying when.
  • Never punish a click. Treat it as a training moment.
  • Avoid cruel lures, such as fake bonuses, pay raises or personal emergencies.
  • Do not impersonate real brands or real colleagues in ways that damage trust in genuine messages.
  • Make reporting easy and thank people who report.
  • Share results as team trends, not a public list of names.

What needs to be set up before the first simulation?

Two technical issues trip up most first campaigns. The first is delivery. Email filters are designed to block phishing, so they may quarantine or flag the practice emails unless they are told to allow them. In Microsoft 365, the supported way to do this is the advanced delivery policy for third-party phishing simulations.

The second is false clicks. Email security tools often open links automatically to check them, which can make it look as though someone clicked when nobody did. Without filtering those automated visits, click rates can be badly inflated and staff can be told they failed a test they never saw.

It also helps to agree on a reporting method first. In Microsoft 365 that is usually the built-in Report button in Outlook, so staff learn the same action they would use for real phishing.

Who runs phishing simulations for small businesses?

Large companies often have a security team that runs simulations in house. Most small businesses do not, so the work is commonly handled by their MSP as part of a managed security service. The MSP sets up delivery, schedules the emails, handles the reporting and explains the results at regular reviews.

This also matches what many cyber insurers and frameworks ask for. The Canadian Centre for Cyber Security's baseline controls for small and medium organizations say organizations should invest in cyber security awareness and training for their employees, including how to identify malicious emails and links.

NetMinder Security is a phishing simulation and awareness training platform that MSPs resell to small business clients under their own brand. It sends monthly practice emails modelled on real scams (never impersonating real brands), shows a two minute lesson with a three question check the moment someone clicks, filters out email security scanners so their link checks do not count as clicks, and produces a branded cyber insurance report. It works with Microsoft 365 only.

Sources

  1. NCSC: Phishing attacks, defending your organisation
  2. Canadian Centre for Cyber Security: Baseline cyber security controls for small and medium organizations
  3. Microsoft Learn: Get started using Attack simulation training
  4. Microsoft Learn: Configure the advanced delivery policy for non-Microsoft phishing simulations
  5. Canadian Centre for Cyber Security: Spotting malicious email messages (ITSAP.00.100)

Common questions

Is a phishing simulation the same as a phishing test?

Yes, the terms are used interchangeably. Both describe sending staff a safe, realistic practice email to see how they respond. Some people prefer the word simulation because the goal is practice and learning, not passing or failing.

Is it legal to send phishing simulations to employees?

Sending safe practice emails to your own staff is common, but how you use the results matters. The UK NCSC warns that punishing people for clicks can create legal risk and recommends involving HR before you start. Keep the program focused on training, not discipline, and follow your own privacy obligations.

Do phishing simulations steal passwords or install anything?

No. A properly built simulation sends people to a training page, not a real login form, and uses harmless content. It records that a link was opened so the person can get a short lesson, but it does not capture real credentials or put software on the device.

What is a good click rate for a phishing simulation?

There is no universal target, because results depend heavily on how difficult each scenario is. A more useful measure is the trend for the same group over several months, together with the report rate. Steady improvement in both is a better sign than any single low click rate.

Do I need Microsoft Defender for Office 365 to run phishing simulations?

Not for a third-party simulation platform. Microsoft's built-in Attack simulation training requires Microsoft 365 E5 or Defender for Office 365 Plan 2, but third-party tools can be used on other plans. You will still need to configure the advanced delivery policy so the practice emails reach inboxes.

Read next

Phishing basicsHow often should you run phishing simulations?For most small businesses, once a month is a sensible default: one short practice email per person, with a quick lesson for anyone who clicks. Official guidance from the NCSC, the Canadian Centre for Cyber Security and NIST does not set a fixed frequency. Monthly is a practical choice because it builds a habit, gives a usable trend and stays light enough that staff do not resent it.Microsoft 365How do you set up Microsoft 365 Advanced Delivery for phishing simulations?In the Microsoft Defender portal, go to Email & collaboration, Policies & rules, Threat policies, Advanced delivery, then the Phishing simulation tab. Add the simulation vendor's sending domain (up to 50) and sending IP addresses (up to 10). Messages that match at least one domain and one IP are delivered without filtering, and Safe Links will not block or detonate their links at time of click.Microsoft 365Why do phishing simulations show clicks nobody made?Email security tools open links automatically to check whether they are safe. Microsoft Defender Safe Links scans URLs before delivery and can detonate unknown links in the background, and many gateways and sandboxes do the same. A phishing simulation that counts every link visit as a click will record these automated checks as people clicking, which inflates click rates and blames staff who never opened the email.For MSPsWhat security awareness metrics should MSPs show clients in QBRs?In a QBR, show a small set of security awareness metrics as trends over time: phishing click rate, report rate, training completion, repeat clickers and coverage (the share of staff enrolled). Pair each number with one sentence on what it means and one action for next quarter. Owners care about direction and evidence, not dashboards full of detail.

Run this for every client.

NetMinder runs monthly practice emails, short lessons and insurer-ready reports under your brand.