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Getting to Grips With Email Security

More than 40% of cyber attacks target small businesses, and email is the most common gateway. Here is a practical guide to the threats your team faces and what to do about them.

Why Email Security Matters for SMEs

More than 40% of cyber attacks target small businesses. Email is consistently the most common way attackers get in, whether through phishing, malicious attachments, or impersonation. The assumption that smaller businesses are not worth targeting is one that cybercriminals actively exploit.

For a business without a dedicated security team, the consequences of a successful email attack, including data loss, financial fraud, regulatory penalties, and reputational damage, can be harder to recover from than for a large enterprise. Investing in email security upfront costs considerably less than recovering from an incident.

The Threats Your Team Faces

Phishing

Fraudulent emails designed to look like they come from a trusted source, such as a bank, supplier, or Microsoft, prompt recipients to click a link or enter credentials. Phishing is now highly targeted, with attackers researching their victims to make messages more convincing.

Malicious attachments

Emails carrying infected files, such as Word documents, PDFs, or compressed archives, deliver malware when opened. Some techniques are specifically designed to bypass standard email security filters, making staff awareness a critical additional layer of defence.

Spoofing and impersonation

Attackers forge emails to make them appear to come from a trusted colleague, senior manager, or supplier. These are often used in business email compromise attacks requesting urgent payments or changes to payment details. Verification by a separate channel before acting on such requests is the most effective countermeasure.

Practical Steps to Improve Your Email Security

Enable multi-factor authentication

MFA on all email accounts means that stolen credentials alone are not enough to access your inbox. This single step removes a significant proportion of credential-based attack risk.

Configure anti-spoofing records

SPF, DKIM, and DMARC records are DNS settings that prevent attackers from spoofing your domain and make it harder for spoofed emails to reach your staff. Many businesses have these partially configured or not at all.

Use spam filtering and anti-malware tools

A properly configured email filter reduces the volume of malicious emails that reach your team’s inbox. It does not eliminate the risk entirely, but it reduces the number of decisions your staff need to make about suspicious messages.

Train staff regularly

Technology reduces the risk but does not remove the human element. Regular, practical awareness training that covers current attack techniques gives your team the knowledge to catch what the filters miss.

Support Across the North West

Blowfish Technology provides email security configuration, MFA deployment, and cyber awareness training for businesses including IT Support Manchester, IT Support Oldham, IT Support Wigan, IT Support Liverpool, IT Support Leyland, and IT Support Bury.

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Blowfish Technology

The Blowfish Technology team. Managed IT, cloud services, software development and connectivity for North West businesses since 1999.