A convincing-looking invoice arrives just before lunch. Someone changes the bank details, payment is made, and the problem is not spotted until the real supplier chases for their money. Situations like this are why five security checks, carried out regularly, are far more useful than a long policy nobody has time to read.
For a small business or charity, security is not about becoming a technology expert. It is about making a few sensible checks part of the working routine, so one lost laptop, rushed click or former employee does not turn into days of disruption. The aim is to protect the things your organisation relies on: access to email, customer information, files, money and the ability to keep working.
The five security checks worth putting in the diary
A monthly check is a sensible starting point for most organisations. A slightly longer review every three to six months works well for items such as user access and recovery plans. The right frequency depends on how many people you employ, the information you hold and how often your systems change.
1. Check who can get into your accounts
Your email account is often the master key to the business. It may reset passwords for other services, hold sensitive conversations and contain invoices, contracts and customer details. Start there, then look at finance software, cloud storage, payroll, customer records and any other system used to run the organisation.
Make sure every person has their own login. Shared accounts make it difficult to know who changed something and make access hard to remove when somebody leaves. If a shared mailbox is genuinely needed, give people access through their own accounts rather than passing around one password.
Turn on multi-factor authentication wherever it is available. This is the extra confirmation step, often through an authenticator app or a prompt on a phone, that makes a stolen password much less useful to a criminal. Text messages are better than no second check, but an app-based method is usually preferable where possible.
Then look for accounts that no longer need access. A former staff member, volunteer, contractor or supplier should not still be able to sign in months later. Pay particular attention to accounts with permission to view payroll, change bank details or manage other users.
There is a practical balance here. Too many restrictions can stop people doing their jobs, especially in a small team where roles overlap. But giving everyone full access “just in case” creates a much bigger risk. Give people the access they need today, not every permission they might possibly need one day.
2. Check that devices and software are being updated
Updates can feel like an interruption, particularly when a laptop wants to restart in the middle of a busy day. Yet many updates fix known weaknesses that criminals already know how to exploit. Delaying them indefinitely is like leaving a broken lock because replacing it is inconvenient.
Check that work laptops, desktop PCs, tablets and phones are still receiving operating system updates. Also check key applications, such as internet browsers, office software, accounting tools and security software. Devices that are too old to receive updates deserve special attention. They may still switch on and appear perfectly usable, but they can become a growing security and reliability problem.
Keep an eye on the basics as well. Each device should have a screen lock, a strong sign-in method and security software appropriate to the device. Laptops that leave the office should be encrypted, meaning the information on the drive is protected if the device is lost or stolen.
Automatic updates reduce the burden, but do not assume they have worked without checking. A device that has been switched off for weeks, has little free storage or has an error message can quietly fall behind. A short monthly review helps catch these before they become an emergency.
3. Check that your backups can actually be restored
A backup is only useful if you can get your information back when you need it. Files can be lost through accidental deletion, equipment failure, ransomware or an incorrect change that is not noticed for days. Keeping everything in one place, even if that place is cloud-based, is not the same as having a recovery plan.
First, confirm what is backed up. Include the files that matter most, but also consider financial records, shared folders, contact lists and any specialist data your organisation needs to operate. Be clear about where the backup is stored and who can access it. If only one person knows the password or process, that is a weakness in its own right.
The crucial check is a test restore. Pick a non-sensitive file or folder and recover it to a safe location. Can you find the right version? How long did it take? Could someone else follow the instructions if the usual person was away? A backup system can report that it has run successfully while still missing an important folder or keeping versions for too short a period.
Keep at least one backup separate from the main systems, so an attacker cannot simply delete both the live files and the copies. The exact setup depends on the tools you use, but the principle is simple: do not put every copy of important information behind the same login or in the same basket.
4. Check your defences against email fraud
Most small-business cyber incidents begin with a message that asks someone to act quickly. It might pretend to be a supplier with new bank details, a director requesting gift cards, a delivery company asking for a payment or a familiar contact sharing a file.
Technology can filter a lot of unwanted email, but it cannot make judgement calls for your staff. Agree a straightforward payment verification process. If bank details change, confirm them using a known telephone number or an established contact method, not the number or link in the unexpected email. The same applies to urgent requests that seem to come from a manager.
During this check, ask whether everyone knows what to do with a suspicious message. They should not feel embarrassed about asking. A quick “does this look right to you?” is much cheaper than trying to recover a payment sent to a fraudster.
It also helps to make reporting easy. Decide who staff should tell, what information they should keep, and who can contact the bank if a payment is involved. Speed matters after a mistake, so a clear response is more valuable than blaming the person who clicked.
5. Check your permissions and your plan for a bad day
The final of the five security checks looks at two things that are easy to overlook when work is going smoothly: who can see your data, and what happens when something goes wrong.
Review shared folders, customer databases and finance systems for overly broad permissions. Sensitive material should not be available to every member of staff simply because it is easier to set up that way. Check also for personal email addresses, old external collaborators and links that allow anyone with the link to view or edit a document.
Next, write down a simple incident plan. It does not need to be a thick folder of technical language. It should say who makes decisions, how to contact your IT support, how staff should report a concern, and what to do if a device is lost, an account appears compromised or files become unavailable. Keep key contact details somewhere accessible if email is the problem.
Run through one realistic scenario with the team. For example, what would happen if the office manager’s laptop went missing on a train, or if someone received an email saying the director needed an urgent payment? The exercise often reveals small gaps, such as nobody knowing who has authority to pause payments or remove an account.
Security is not a one-off job to tick off and forget. It is a useful habit of noticing changes before they become expensive distractions. Put the next review in the diary, give one person responsibility for chasing it, and keep the process simple enough that it actually gets done.