How to Reduce Phishing Risk in Your Business
A convincing email can now look like it came from your bank, a regular supplier, a director or even a colleague. It may arrive during a busy morning, refer to a genuine project and ask for something that feels routine. Knowing how to reduce phishing risk is therefore less about expecting every member of staff to spot every scam, and more about putting sensible checks and technology around the moments where one click could cause real disruption.
For small and mid-sized businesses, phishing can lead to stolen Microsoft 365 accounts, fraudulent payments, ransomware, data loss and time-consuming recovery work. The right approach is practical: make suspicious activity easier to identify, limit what an attacker can do if they get in, and ensure your team knows exactly what to do when something does not feel right.
How to reduce phishing risk with layered protection
There is no single setting that stops phishing. Email filtering will catch a large proportion of malicious messages, but some will always reach inboxes. Staff awareness helps, but even careful people can be caught out by a well-timed and convincing request.
A layered approach is more dependable. It combines secure email, strong account protection, well-managed devices and clear processes for payments and sensitive information. If one control fails, another should reduce the chance of a serious incident.
The level of protection should reflect the way your business operates. A firm that processes client payments or holds sensitive health, financial or legal information needs tighter controls than a business using email only for general enquiries. Remote working, shared mailboxes and frequent supplier payments also create areas that deserve closer attention.
Start with the emails your team receives
Most phishing attempts begin in the inbox. A properly configured business email service should filter known malicious senders, suspicious attachments and harmful web links before staff see them. It should also scan emails that appear to come from outside your organisation, including messages that impersonate trusted brands.
Email filtering is valuable, but it should be tuned carefully. Overly aggressive filtering can delay legitimate customer enquiries, invoices or booking confirmations. Reviewing quarantined emails regularly and allowing trusted senders where appropriate helps keep protection useful without making day-to-day work harder.
Your own domain also needs protection. Email authentication settings – commonly known as SPF, DKIM and DMARC – help receiving systems verify that messages claiming to come from your business are genuine. This reduces the risk of criminals sending fake invoices or payment requests using your company name. These settings require correct configuration and monitoring, particularly if you use third-party platforms to send newsletters, invoices or booking reminders.
Treat unexpected requests as a prompt to check
Staff do not need to become cyber security specialists. They need a simple, repeatable habit: pause before responding to an unexpected request involving money, passwords, personal data, login details or urgent action.
Phishing emails often create pressure. They may claim an account will be closed, a parcel cannot be delivered, a password has expired or the managing director needs an urgent transfer. The message may use familiar branding and polished language. A spelling mistake can be a warning sign, but its absence does not prove an email is safe.
Encourage staff to check the sender’s full email address, not simply the display name. They should hover over links before opening them and avoid entering credentials after following an unexpected link. When in doubt, they should visit the supplier or service provider through a known web address, or call a verified number rather than using details in the message.
Protect accounts even when a password is stolen
A stolen password should not automatically give a criminal access to company email, files or financial systems. Multi-factor authentication, often called MFA, adds a second check when someone signs in and is one of the most effective protections against account takeover.
MFA should be enabled across email, cloud storage, remote access, finance platforms and administrator accounts. An authenticator app, passkey or security key is generally safer than an SMS code, as criminals can sometimes trick users into sharing codes or intercept text messages. The best option depends on the systems you use and the practical needs of your staff, but any well-managed MFA is substantially better than password-only access.
Passwords still matter. Use unique, long passwords for every business account and provide an approved password manager so staff are not tempted to reuse passwords or store them in spreadsheets. Remove access promptly when someone leaves, and review shared accounts that make it difficult to see who has signed in or taken action.
Administrator accounts need particular care. They should not be used for normal email or web browsing, and access should be limited to people who genuinely require it. If an attacker gains administrator access, the damage can spread quickly across the organisation.
Make payment and data requests harder to fake
Phishing is not always about malicious attachments. Business email compromise often involves an attacker impersonating a director, supplier or customer to change bank details or request a payment. In some cases, they have already accessed a real mailbox and are replying within an existing email chain.
The most reliable defence is a clear verification process. Any request to change supplier bank details, amend payroll information or make an unusual payment should be confirmed using a known, independent contact method. That means calling a number already held in your records, not the number supplied in the email.
Set financial approval limits that match your business and require a second person to review higher-value or unusual payments. This may feel slower than approving a request by email, but a short verification call is far less disruptive than attempting to recover money sent to a criminal account.
The same principle applies to personal information. Before sending employee records, client documents or passwords, confirm who is asking and why. Sensitive data should be shared through approved, access-controlled systems rather than attached casually to an email.
Give people a safe way to report concerns
A member of staff who reports a suspicious email quickly may prevent a wider problem. Make reporting straightforward and blame-free. A dedicated “report phishing” option in email, a clear internal contact and a simple instruction such as “stop, report, delete” can all help.
Avoid treating awareness training as a once-a-year box-ticking exercise. Short, relevant sessions are more likely to stick, especially when they use examples that mirror the threats your team actually sees: fake Microsoft sign-in pages, invoice scams, delivery notices and impersonated directors.
Simulated phishing tests can be useful, but they should support learning rather than embarrass people. The aim is to improve judgement and reporting behaviour, not to catch staff out. New starters need this guidance early, while experienced employees benefit from reminders as tactics change.
Keep devices and access under control
An email link can only do so much harm if the device, software and user permissions are properly managed. Keep operating systems, browsers, office applications and security software up to date. Many attacks exploit known weaknesses that have already been fixed by the software provider.
Use managed antivirus or endpoint protection across company laptops and desktops, including devices used at home. Limit staff access to only the files and systems they need for their role. This reduces the impact if one account is compromised and makes it less likely that a phishing incident becomes a business-wide outage.
Backups are also part of the picture. They will not stop a phishing email, but reliable, regularly tested backups can make recovery possible if an attack leads to ransomware or deleted files. Keep at least one backup protected from normal user access so a compromised account cannot alter or remove it.
Know what to do if someone clicks
Speed matters, but panic does not help. If a colleague clicks a suspicious link, downloads a file or enters their password into a site they no longer trust, they should report it immediately. Do not wait to see whether anything happens.
The first response may include disconnecting the device from the network, changing the password from a known-safe device, revoking active sign-in sessions and checking for unusual inbox rules or forwarding settings. Your IT support provider should review the account, device and any connected systems to establish what was accessed and contain the issue.
If payment information was involved, contact the bank straight away. If personal data may have been exposed, assess your reporting obligations and communicate carefully with affected parties. A documented incident process means decisions are not being made from scratch while the business is under pressure.
Make phishing protection part of normal business practice
Phishing protection works best when it becomes part of ordinary operations, not a separate technical project. Review access when roles change, check email security after introducing a new supplier platform, and revisit payment procedures as the business grows. The controls that suit a five-person office may need adjustment when teams work remotely, use shared systems or handle larger transactions.
Alka IT Services can help Derbyshire businesses review email security, account protection and day-to-day processes without adding unnecessary complexity. The useful next step is a practical conversation about where your most valuable information sits, who can access it and which small changes would give your team more confidence when the next suspicious message arrives.
