In today’s increasingly digital business environment, protecting your company’s finances is more critical than ever. Reports suggest that fraud now accounts for approximately 41 per cent of all crime in England and Wales and costs billions annually, as banks, tech groups and regulators step up collaboration to clamp down on online fraud. For business owners and financial managers, recognising and preventing suspicious activity on business accounts is a key pillar of good corporate governance and financial security.
Suspicious activity on business accounts can take many forms, from unauthorised transactions and unusual login attempts to money laundering or internal fraud. In the UK, financial institutions and professionals are required to submit Suspicious Activity Reports (SARs) when they have reasonable grounds to suspect money laundering or terrorist financing, making early detection vital not just for your business’s protection, but also for broader economic crime prevention.
A fundamental step in avoiding suspicious activity is fostering a deep understanding of your business’s normal financial patterns and operations. If something deviates from the expected—whether a large, unplanned payment to a new supplier or multiple login attempts from an unusual location—this could signal a threat. According to fraud prevention guidance, frequent, proactive checks of your accounts are essential; reviewing transactions daily rather than quarterly increases the chance of spotting anomalies early, giving you a better chance of challenging questionable activity before substantial loss occurs.
Equally important is securing access to your online banking and financial systems. Cybercrime remains a primary vector for account compromise, with criminals employing phishing, malware and social engineering to trick users into revealing credentials. The Association of British Investigators highlights making strong, unique passwords and enabling multi-factor authentication (MFA) across all critical accounts as simple but powerful measures to make unauthorised access significantly more difficult. Research supports this: studies show that accounts protected by MFA experience dramatically fewer successful breaches compared with single-factor setups, illustrating the value of additional verification steps.
It isn’t just external threats that businesses must consider. Insider fraud—where an employee or contractor uses their position to commit wrongdoing—can be particularly insidious because the activities often mimic legitimate behaviour. Campaigns warn that such scams may go unnoticed for significant periods, especially when individuals resist audits or financial reviews, or display unexplained personal wealth inconsistent with their role. Regular internal auditing, segregation of duties and robust approval processes are essential controls to deter and detect fraud by insiders.
Proactive monitoring tools can further enhance your ability to spot suspicious activity. Fraud detection dashboards, for example, are designed to provide insights into patterns and anomalies across transactions over time. These systems can track indicators like the number of flagged transactions, unresolved incidents, and detection times, offering management a clearer picture of the organisation’s vulnerability to fraud.
Knowing your customers and suppliers is equally important. Conducting due diligence—including verifying company registration details through official registers like Companies House, checking credit references and assessing unusual profitability or turnover—helps ensure that you’re not inadvertently involving your business in fraudulent networks. This is particularly relevant in international trade, where identity fraud can affect both domestic and overseas operations.
A culture of awareness and reporting is another vital safeguard. Encourage staff to be sceptical of unsolicited offers or urgent financial requests, and educate them about common scam techniques, such as impersonation attempts by fraudsters posing as bank representatives. In recent years, UK businesses have reported a surge in such impersonation scams, where fraudsters use legitimate-looking details to persuade employees to authorise payments or reveal sensitive information. Prompt reporting of any suspected fraud to law enforcement and your bank ensures the right steps are taken swiftly, and in some cases can prevent further losses.
Legislation like the Economic Crime and Corporate Transparency Act 2023 also emphasises the importance of having robust procedures to prevent fraud. While primarily focused on regulatory compliance, the Act underlines that failure to prevent fraud offences can carry serious legal consequences, encouraging organisations to embed strong governance and fraud-prevention practices in their day-to-day operations.
Ultimately, avoiding and identifying suspicious activity on business accounts is about building a resilient and vigilant financial framework. By combining routine account monitoring, up-to-date cybersecurity practices, thorough internal controls and a culture that encourages reporting and awareness, businesses strengthen their ability to detect threats early and respond effectively. As fraud tactics evolve, so too should your strategies, ensuring your business remains secure in an ever-changing financial landscape.