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CYBER SECURITY AUDIT · LONDON

Cyber Security Audit Services

Sereno provides cyber security audit services in London to help businesses understand their current cyber security posture.

Our cyber security audit reviews the security measures already in place and highlights areas that may leave your organisation exposed to cyber threats. You receive detailed findings and practical recommendations to strengthen your security.

  • Identity & Access Security
  • Devices & Secure Configuration
  • Email & Cloud Security
  • Malware & Endpoint Protection

WHY ASSESSING CYBER RISK MATTERS

Why Conduct a Cyber Security Audit?

A cyber security audit gives you a clear view of how well your current protections are working and where attention may be needed, helping you prioritise improvements based on actual cyber risks.

  • Identify weaknesses in your current security

    A comprehensive security audit can identify weaknesses in existing security controls that may affect systems, devices and data security, such as excessive user access, unsupported software, missing security updates, weak authentication settings or devices that are not configured securely.

  • Reduce the risk of cyber attacks and data breaches

    Finding security gaps early gives you time to fix them before they cause disruption or put business data at risk. Regular reviews also help you keep protection up to date as your systems and working practices change.

  • Support Cyber Essentials and other security standards

    If you are planning to achieve Cyber Essentials or Cyber Essentials Plus certification, an audit can help you understand where your current setup falls short of the relevant requirements.

  • Make better security decisions

    Understanding your cyber security posture makes it easier to decide which improvements should come first and where additional cyber security services may provide the most value.

Looking for reliable cyber security audit services in London? Get in touch with us.

OUR IT SECURITY AUDIT SERVICES

What Our Cyber Security Audit Includes

Our cyber security audit service provides a comprehensive assessment of the areas that affect day-to-day business security.

  • Identity & Access Security

    We review user access, privileged accounts and authentication measures such as passwords and multi-factor authentication. This helps uncover excessive access and accounts that may no longer be needed.

  • Devices & Secure Configuration

    Your devices, operating systems and software are checked for issues such as missing updates and insecure configurations. We also look at whether the controls in place are appropriate for the way your team works.

  • Email & Cloud Security

    Email accounts and cloud platforms such as Microsoft 365 and Google Workspace are common targets for cyber threats. Our audit reviews how accounts are protected, including access settings and measures used to reduce phishing and account compromise.

  • Malware & Endpoint Protection

    We check how business devices are protected against malware and whether endpoint security tools are configured and kept up to date. The review can also highlight devices where protection is missing or inconsistent.

  • Monitoring & Incident Readiness

    The audit considers how security activity is monitored and what happens when something unusual is detected. Where relevant, we can also review existing incident response plans to identify areas that need updating.

  • Network Security

    We review the protections around your business network, including firewalls and network access, to identify security vulnerabilities that could expose systems or data. More detailed network security audit services can be provided where a closer review is required.

  • Cyber Essentials Readiness

    If you are working towards Cyber Essentials or Cyber Essentials Plus, our audit can help you identify which controls need attention before you apply.

Understand your current risks and take practical steps to protect your business with Sereno.

WHEN A SECURITY REVIEW MAKES SENSE

When Should You Undertake a Cyber Security Audit?

Cyber security audit services are useful whenever there has been a significant change to your IT environment, or when you want a clearer view of current risk.

  • Before Cyber Essentials certification. An audit can help identify gaps that may need to be addressed before you apply.
  • After major IT changes. Moving to new systems or changing how employees access business data can introduce new risks.
  • Following a security incident. A review can help show where existing controls may have failed and what should be improved.
  • As your business grows. New employees, locations, devices or suppliers can introduce new cyber security risks and create areas that need attention.
  • When security has not been reviewed for some time. With changing technology and emerging threats, it is important to regularly review your protections even when there has been no obvious problem.

Need an independent risk assessment of your current IT security?

CYBER SECURITY AUDIT IN LONDON · OUR AUDIT PROCESS

How Sereno IT Conducts a Cyber Security Audit

Sereno follows an established process to understand your current setup, assess the risks and provide recommendations for improvement.

  1. Define the scope

    We start by understanding your IT environment and agreeing which systems, devices, accounts and cloud services need to be reviewed.

  2. Review your current security

    Our team examines the controls and configurations already in place, looking for security weaknesses that could leave systems or data exposed.

  3. Assess and prioritise the findings

    We review the issues identified during the audit and consider which ones pose the greatest concern for your business. The findings are then prioritised so you know what should be addressed first.

  4. Report and recommend next steps

    You receive a detailed report that explains the findings and recommended actions in simple terms. If changes are needed, Sereno’s security experts can assist with their implementation.

TRUSTED & ACCREDITED

Awards & Accreditations

  • Microsoft Solutions Partner
  • Google Workspace Partner
  • Cyber Essentials Plus
  • Cloudtango Top 25 UK MSP
  • Cloudtango MSP UK Select 2026
  • IT Nation Evolve

REVIEWING NETWORK SECURITY

Network Security Audit Services

If you need a closer look at your network environment, Sereno can carry out a more focused review of the controls protecting your infrastructure. This can include firewalls, remote access, network configuration and other security measures that affect how systems and users connect. The aim is to identify gaps, reduce exposure and strengthen your organisation's security.

TURNING FINDINGS INTO ACTION

Cyber Security Consultancy

An audit can show where improvements are needed, but some businesses also need guidance on what to do next. Our experienced consultants can help you prioritise changes and plan practical improvements based on how your business operates.

WHY OUR CYBER SECURITY AUDIT SERVICES

Why Choose Sereno IT for Cyber Security Audit?

  • Security expertise with a wider view of your IT

    Sereno works across networks, devices, cloud platforms and user access, so the audit is considered in the context of your wider IT setup.

  • Practical recommendations you can act on

    The findings are explained clearly and prioritised according to their importance. You receive a comprehensive report with recommendations that are realistic for your business.

  • Support with the changes that follow

    If the audit identifies areas that need improvement, Sereno can help put those changes in place through our cyber security services and managed security support.

  • Experience with Cyber Essentials requirements

    We help London businesses prepare for Cyber Essentials and Cyber Essentials Plus, so our team has practical experience of the controls these schemes require and the common gaps that prevent businesses from being ready for assessment.

Case studies

Client Success Stories

Explore how Sereno supports businesses with practical IT solutions tailored to their needs.

  • Hutton Consulting

    Case study · Hutton Consulting

    The IT Relationship Hutton Consulting Was Looking For

    Modernised cloud and identity setup to support hybrid working, with security and strategy from a partner they could finally trust.

    Read the case study
  • Statons Estate Agents offices

    Case study · Statons Estate Agents

    How Statons Transformed Operations with Microsoft 365

    Took ownership of devices, onboarding and security so the operations team could focus on customers, not IT.

    Read the case study
  • Urban Logistics REIT

    Case study · Urban Logistics REIT

    Reliable IT Support for a Listed Property Investment Company

    Built an IT roadmap aligned to growth, with predictable monthly investment, dependable support and clearer reporting.

    Read the case study

Our Happy Clients

Google Reviews

70 Google reviews

Write a review
  • Dominik

    11 months ago

    We have partnered with Sereno on a range of IT projects and appointed them as our managed IT services provider and the experience has been exceptional from the…

  • Jo Joynes

    a year ago

    Sereno IT are innovative in their approach to IT support. We moved to Sereno IT in Jan 2023 and have not looked back.

  • AJ Shazad

    a year ago

    I have known Sereno (and their previous business) since 2016 as they are the IT solutions providers of our private credit fund with complex operations.

  • Tim Field

    a year ago

    Great company, very efficient with some wonderful individuals supporting

  • Scott Simmons

    a year ago

    We have used Sereno for our IT support since May 2023 and find the team to be quick, informative and clear in terms of describing any work carried out to…

CloudTango Reviews
  • “Sereno have been a reliable and valued partner, with a fantastic team of highly responsive and capable technicians, backed by proactive and forward-thinking leadership.”

    John Holmes

    IT Manager, Oikos Storage Ltd

    CloudTango Review

  • “After a couple of challenging years with our previous IT support company, moving to Sereno IT in 2024 has been one of the best business decisions we've made.”

    Joanna Socko

    Franklyn James

    CloudTango Review

  • “IT is no longer a burden or even a part of my work week. I know the team are looked after quickly if they have an issue, and I get all the advice and guidance…”

    Jamie Waldegrave

    COO/CFO, Urban Logistics

    CloudTango Review

  • “The advice we've had from Sereno means we can make informed decisions about what our company actually needs and we know we can implement changes easily.”

    Alice Lees

    Hutton Consulting

    CloudTango Review

  • “Sereno IT provided a solution that perfectly aligned with our needs. Not only did they help us save on costs, but they also ensured our systems are secure and…”

    Nigel Shearsby

    Statons Estate Agents

    CloudTango Review

Frequently Asked Questions

A cyber security audit helps you understand where your current protections may be falling short before weaknesses lead to disruption or a security breach. A comprehensive review also gives you a basis for deciding which improvements should come first, helping strengthen cyber resilience as your business and IT environment develop.

The tools used depend on the scope of the audit and the systems being reviewed. The process may combine technical checks with a manual review of configurations, access controls, devices, networks and cloud services.

Start by making sure the auditor has accurate information about systems, devices, cloud services, user accounts and current security policies. It is also useful to document any recent changes or known concerns in advance so the review can focus on the areas most relevant to your business.

You come away with a clear picture of the weaknesses found, their level of priority and the steps recommended to address them, which may include changes to access, configuration, patching, backup and disaster recovery arrangements, or other security controls.