Email is still the easiest way for cybercriminals to get into your business – and to trick staff into sending money or sensitive data. This article breaks down practical email security essentials that small and mid-sized businesses in the Fraser Valley and Lower Mainland can put in place without needing a big IT team or complex tools.
Why Email Security Matters More Than Ever
For most small businesses, email is where everything happens: quotes, invoices, contracts, payroll details, and confidential client conversations. That makes your inbox incredibly valuable to criminals. They are not always trying to “hack your server” in a dramatic way. More often, they quietly get access to an email account, watch traffic, and then step in at the perfect time to change a bank account number or trick someone into sending money. This is called business email compromise, and it targets companies of every size, not just large enterprises. The good news is that you do not need a huge budget to become a difficult target. A smart combination of tools, clear processes, and basic staff awareness can block most common attacks before they cause damage.
1. Use Proper Business Email, Not Personal Accounts
Many small businesses still run on free personal email accounts like Gmail, Hotmail, or internet provider addresses. While convenient, they are harder to manage and secure across a team. If an employee leaves, you may lose access to business conversations. If an account is compromised, there is no central way to reset and monitor it properly. Moving to a business-grade email platform, such as Microsoft 365 with your own domain name, gives you much more control. You can centrally manage accounts, enforce security settings, and ensure all staff use consistent email addresses that look professional to clients. It also unlocks advanced security features like conditional access and better spam filtering. This single change lays the foundation for everything else you do to secure email in your organization.
2. Turn On Multi-Factor Authentication for Every Mailbox
Multi-factor authentication (MFA) is one of the most effective security measures you can put in place. It means that logging into email requires something more than just a password, such as a code on a phone or a tap in an app. Even if an attacker steals or guesses a password through phishing, they still cannot get in without that second factor. For small businesses using Microsoft 365 or similar cloud email services, MFA is usually included and just needs to be configured properly. It can be rolled out gradually, starting with owners and finance staff, then expanded to the entire team. Yes, it adds a small step to logging in, but it dramatically reduces the risk of account takeover and the expensive fraud that often follows.
3. Train Staff to Spot Phishing and Payment Scams
Technology alone cannot protect your business if people are tricked into clicking the wrong link or approving a fake payment. Regular, short training sessions help staff recognize warning signs: urgent requests to change bank details, messages that look like they come from the owner but use odd wording, links that do not match the supposed sender, or invoices that appear slightly different from usual. Focus training on real examples your team might see, especially around payments, payroll, and supplier changes. Remind staff that it is always acceptable to slow down and double-check a request, even if it seems to come from a senior person. A culture where people feel safe to question unusual emails is one of the strongest defenses you can have.
4. Standardize Payment and Change-Request Verification
Most email-based fraud targets your money, not your data. Criminals often insert themselves into a genuine email thread and ask your team to send payment to a new bank account or update vendor details. To counter this, put clear, written procedures in place for handling any request that affects money or sensitive information. For example, any change to bank account details must be verified using a known phone number, not by replying to the email. Large payments may require a second person’s approval. New supplier setups can go through a checklist before being added. These steps might feel repetitive, but they remove the pressure from individuals having to “guess” what to do. Instead, they simply follow the agreed playbook every time.
5. Use Strong Filtering and Safe-Link Protections
Modern email security tools do much more than basic spam filtering. They can scan incoming messages and attachments for malware, block known dangerous websites, and rewrite links so they are checked in real time when clicked. Many of these protections are available as add-ons to Microsoft 365 or Google Workspace, in conjunction with our managed security services. The goal is to reduce the number of bad emails that ever reach your staff, so humans have fewer chances to make a mistake. Ask your IT provider to ensure you have business-grade filtering and safe-link technology turned on and correctly configured. Combined with multi-factor authentication and training, this creates a strong layered defense that makes successful attacks far less likely.
6. Control How and Where Email Is Accessed
It is common for staff to access email from phones, home computers, and shared devices. Without some basic controls, this can create blind spots. If a phone with company email is lost or stolen, can you remotely wipe the business data? Are staff using the same weak password on multiple devices? Are people forwarding work email to personal accounts to “make life easier”? A good practice is to manage devices through a central system so you can enforce screen locks, encryption, and the ability to remotely remove company data. Set clear rules about not sharing passwords and not forwarding work email outside the business. These steps help keep your email data under your control, even when staff are working remotely or on the go.
7. Have a Simple Plan for When Things Go Wrong
Even with good protections, incidents can still happen. The difference between a minor scare and a costly disaster often comes down to how quickly and calmly you respond. Create a short, written plan for what to do if someone thinks their email has been compromised or they clicked a suspicious link. Include who they should notify first, how to reset passwords, when to disable access, and who will inform affected clients or vendors if needed. Work with your IT provider to ensure logs and backups are in place so accounts can be checked and data restored if necessary. Testing this plan once a year gives everyone confidence that they know what to do, which keeps downtime and damage to a minimum.
If you’re unsure how exposed your email is to fraud and cyberattacks, TSG Computer Services can help. We work with small and mid-sized businesses across the Fraser Valley and Lower Mainland to secure Microsoft 365 and Google WorkSpace, train staff, and put practical safeguards in place. Contact us to schedule a no-pressure Email Security Checkup and get clear recommendations tailored to your business.
