A remote access security review is not simply a technical exercise for the IT team. It is a practical check on who can reach your systems, what they can do once connected, and whether a lost device, stolen password or supplier account could interrupt normal operations.

For many organisations, remote access has grown in stages. Staff began working from home, cloud platforms were added, suppliers needed access for support, and mobile devices became part of normal working life. Each decision may have been reasonable at the time. Together, they can create a complicated estate that is difficult to oversee.

The objective is not to make remote working harder. It is to give staff the secure, reliable access they need while reducing the opportunities for an attacker or an accidental mistake to cause disruption.

What a remote access security review should examine

A useful review starts with a clear picture of every route into business systems. This includes remote desktop services, virtual private networks, cloud applications, Microsoft 365, remote management tools, file-sharing platforms, mobile devices and third-party support connections. If a system can be reached from outside the office, it belongs in scope.

The review should then connect those access routes to real business roles. A finance manager, a teacher, a production supervisor and an external IT supplier do not need the same level of access. When permissions are granted broadly for convenience and never revisited, the organisation carries more risk than it needs to.

This is where technical settings and operational knowledge need to meet. A security control that prevents a warehouse manager from accessing a critical system during an early shift will soon be bypassed. Equally, a process that makes exceptions too easy can undermine an otherwise sound policy. The right answer is proportionate access that works for the people doing the job.

Identity and authentication

Most remote access incidents begin with compromised credentials. Passwords are reused, obtained through phishing, guessed, or exposed in a separate breach. A strong review therefore looks beyond whether password rules exist and asks whether they meaningfully protect accounts.

Multi-factor authentication should be in place for remote access, particularly for email, cloud services, administrative accounts and any connection to internal systems. It should be applied consistently, not only to senior staff or new systems. Authentication methods also matter. App-based approval or number matching will usually offer better protection than basic text-message codes, although the most suitable approach depends on the organisation and its users.

The review should identify shared accounts, dormant users and accounts belonging to former employees, contractors or suppliers. Shared credentials make accountability difficult. Former staff accounts are an obvious risk, but supplier access often receives less attention. Access should have a named owner, a defined purpose and a process for removal when it is no longer required.

Administrative accounts deserve separate treatment. Day-to-day work should not be carried out using an account with elevated privileges. Limiting administrator access, applying multi-factor authentication and reviewing its use can significantly reduce the impact of a compromised login.

Devices and the networks they use

Remote access is only as secure as the device connecting to it. A well-configured cloud platform cannot fully compensate for an unpatched laptop, an unmanaged home computer or a mobile phone without a screen lock.

A review should establish which devices are permitted to access business services and whether they are managed. At a minimum, approved devices should be encrypted, updated, protected by endpoint security and capable of being remotely locked or wiped where appropriate. Supported operating systems and software are essential. Systems that can no longer receive security updates create a predictable weakness.

Bring-your-own-device arrangements need particular care. They can be appropriate for some roles, but access should be tailored to the risk. Viewing email through a protected application may be acceptable, while downloading sensitive records to a personal device may not be. There is no single rule for every business. The decision should reflect the information involved, regulatory duties and the practical ability to manage the device.

Home and public networks are also part of the picture. Staff cannot always control the broadband equipment or Wi-Fi around them, but organisations can reduce exposure by using encrypted connections, keeping devices up to date and making clear when public Wi-Fi should not be used for sensitive work.

Prioritising the risks in a remote access security review

Not every finding should trigger an urgent project. A good remote access security review separates immediate exposure from longer-term improvement, giving leaders a sensible order of action.

For example, an internet-facing remote desktop service without multi-factor authentication is likely to require prompt attention. A remote access policy that needs clearer wording may be less urgent, provided appropriate technical controls are already operating. Both matter, but treating them as equal can delay the work that most reduces risk.

The review should consider the value of the systems being accessed. A compromise of a shared calendar is inconvenient. A compromise of finance systems, safeguarding information, manufacturing controls or customer data may stop operations, create legal obligations and damage trust. Critical services should receive the strongest controls and the closest monitoring.

It should also assess what happens after a login succeeds. Attackers often do not stop at one account. They look for wider permissions, stored credentials, unprotected file shares and administrator tools. Segmentation, least-privilege access and secure configuration reduce the chance that one compromised user becomes a business-wide incident.

Monitoring, logs and response

You cannot investigate activity that has not been recorded. Remote access logs should show successful and failed sign-ins, administrator activity, significant changes to permissions and unusual access patterns. For many small and mid-sized organisations, the challenge is not a lack of logs but a lack of meaningful review.

Monitoring should be focused on events that require action. Repeated failed attempts, access from unexpected locations, impossible travel between sign-ins, disabled security controls and new administrator accounts are examples worth investigating. The process must include clear ownership: who receives an alert, who decides whether it is suspicious, and who can act outside normal office hours?

An incident response plan should include remote access scenarios. If a staff member reports a lost laptop or suspects a phishing email has captured their password, the organisation needs a straightforward route to reset credentials, end active sessions, assess affected data and restore normal working. A plan that exists only in a document but has never been tested can create avoidable delays under pressure.

Turning findings into practical improvements

The most valuable output from a review is a prioritised improvement plan, not a long technical report. It should explain the issue in plain English, set out the likely business impact, identify who owns the action and give a realistic timescale.

Quick wins often include enabling multi-factor authentication, removing unused accounts, applying updates, restricting administrator rights and closing unnecessary remote access routes. These changes can deliver a meaningful reduction in risk without requiring a major technology programme.

Other actions may need more planning. Replacing an ageing remote desktop approach, introducing device management, separating networks or consolidating overlapping cloud services can require investment and staff engagement. The business case should be based on reduced downtime, improved control and a more supportable environment, rather than security terminology alone.

Staff communication is part of implementation. People need to understand why they are being asked to use a second sign-in factor, accept device updates or stop using an informal file-sharing tool. Clear explanations and a workable process will achieve more than a policy that simply tells people what not to do.

For organisations working towards Cyber Essentials, a remote access review also helps bring day-to-day controls into line with the scheme’s expectations around secure configuration, access control, malware protection and patch management. Certification should support better practice, not become a box-ticking exercise.

Keep remote access under review

Remote access security is not fixed once a project is complete. New starters join, suppliers change, software is introduced and working patterns shift. A formal review at least annually, supported by regular checks of accounts, devices and access permissions, helps prevent small exceptions becoming permanent weaknesses.

CETSAT’s approach is to make this work proportionate to the organisation: protecting the systems that matter most without putting unnecessary friction in front of staff. The right remote access arrangements should give leaders confidence that people can work from wherever they need to, while the business remains protected, productive and ready to respond when something changes.