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Practical guideCyber Essentials5 min read

Cyber Essentials: Is Your Malware Protection Actually Working?

Check which devices are protected, what a security dashboard really shows and who follows up warnings when preparing for Cyber Essentials.

AI-assisted guidance from RightCyber. Sources checked on 20 September 2026.

BylineWritten by RightCyber · Published by RightCyber

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Source statusSources checked 20 September 2026 · Review due 20 December 2026

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Match protection reports to the devices people use, investigate missing results and follow an alert through to the person responsible for acting on it.

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An antivirus subscription renews and the invoice gets paid. That tells you the business has bought something. It doesn't tell you whether the spare laptop is protected, whether a setting was disabled or who reads the alerts.

For Cyber Essentials preparation, start with the devices and work towards the protection on each one. You want to be able to explain what is active, what it does and how somebody notices when it stops working.

The checks below are practical ways to investigate that. They aren't a replacement for the official assessment questions or a prescribed reporting format.

Choose the right protection route

The NCSC's current requirements offer anti-malware software for Windows and macOS devices, or application allow listing for any in-scope device. At least one applicable mechanism must be active and maintained. Buying a particular brand isn't required.

Anti-malware must stop malicious software and code running, block malicious websites and stay updated as the vendor recommends. Allow listing must restrict execution to actively approved, correctly signed applications and prevent installation of unsigned or invalidly signed apps.

Use those requirements when comparing settings. A list of recommended apps in a handbook doesn't demonstrate that an allow-listing arrangement actually restricts what can run.

Match the protection report to your device list

Ask your provider for the devices its security service currently sees. Compare that with the devices people actually use, including the one taken home by a director and the laptop reserved for temporary staff.

If a device is absent, find out why. Perhaps it was replaced and the equipment list needs updating. Perhaps the protection was never installed. Perhaps the device hasn't been online for weeks. Each explanation leads to different work.

Agree the names you use for devices. Matching a finance spreadsheet's serial number to a security console's friendly name can become a surprisingly long job. A common identifier helps avoid investigating the wrong laptop.

Keep missing results visible. An empty status field isn't evidence that everything is fine. Give somebody the task of getting a current result or resolving the discrepancy.

Look past the green tick

A summary indicator is useful, but ask what it measures. Does it mean the computer recently checked in, the software is installed, or that the required protections are working? Those aren't necessarily the same finding.

IASME's malware guidance highlights automatic file checks and protection against malicious web pages. For your chosen product, use the vendor's current instructions to find those settings and confirm how protection works with the browsers your staff use.

Ask your provider to show the last successful update and any warnings requiring action. Check whether a subscription or management connection has expired. If the product has exclusions, ask what each one allows and why it is still needed.

Exclusions deserve an explanation you can understand. For example, an exception created while troubleshooting one application shouldn't be left unexamined simply because nobody remembers the original ticket.

Give mobile devices their own check

A laptop security report won't necessarily describe what is happening on phones and tablets. Write down the relevant protection method for each device type instead of assuming one tool covers everything.

IASME's guidance discusses approved applications and trusted app sources for mobile devices. Ask how your arrangement controls installation, how applications are approved and how the current approved list is maintained.

Consider an imagined business that approves a scanner app for delivery receipts. The useful questions include who selected it, how it reaches employees' devices and what happens if someone installs a different scanner to get a job finished. An answer that only names an app store misses those practical details.

Where personal devices are involved, settle what your business can manage and how staff will follow the agreed arrangement. Our guide to cloud services and personal-device scope helps with the earlier question of which devices belong in the assessment.

Follow one alert through to a person

Ask who receives a protection warning and what they are expected to do. A shared mailbox nobody checks is a poor destination for a message that needs attention.

You can review this without downloading anything dangerous. Ask your provider to walk through an existing, suitably redacted alert or a vendor-approved demonstration. Who sees it first? Who contacts the user? Who decides whether the device needs further investigation? How is the outcome recorded?

Distinguish a blocked item from an unresolved incident. A message saying something was detected may need investigation to establish whether it ran, what was affected and whether more action is necessary. Let a competent responder interpret the evidence rather than guessing from a notification title.

Give staff a simple reporting route too. They should know where to send an unexpected warning and should feel able to report a mistake promptly.

Agree what happens when protection fails

Write a short procedure for devices that stop reporting, lose required settings or can't update. Include who investigates, who can make a repair and who decides whether business use should pause while the problem is resolved.

Choose a sensible review routine with your provider. Its frequency should reflect your working pattern and the tools available. This article doesn't prescribe a new Cyber Essentials interval.

Finish by checking one ordinary device together. Ask the provider to explain the result in terms of the actual requirements. You should leave with a clear answer about that device, a list of anything still unresolved and a named person responsible for each next step.

Provenance

Sources reviewed

Reviewed 20 September 2026

Sources reviewed by RightCyber on 20 September 2026. A source’s classification describes where it came from; it is not a blanket claim about every source.

How we prepare guidance and handle corrections

Disclaimer

Prepared with AI assistance using the primary sources linked here. RightCyber is independent and is not affiliated with or endorsed by IASME or the NCSC. This article offers general help with preparation. Follow the official scheme documents and your Certification Body's guidance when making assessment decisions. Certification isn't guaranteed.

Clarifications

Frequently asked questions

Does paying for antivirus prove a device is protected?
No. Check the device's current result and the settings behind it. Confirm that required protection is active, updates succeed and somebody follows up problems.
What should we do if a device is missing from the report?
Find out whether the device was retired, has been offline or lacks the expected protection. Give someone responsibility for resolving the gap instead of treating a missing result as a successful check.
How can we check that alerts reach the right person?
Ask your provider to walk through an existing redacted alert or a vendor-approved demonstration. Check who receives it, who contacts the user and where the outcome is recorded.

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Settle which devices need to be covered before comparing protection reports.

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