WhatsApp Workplace Use Exposes Firms to Cyber-Risk

A wave of data indicates that staff reliance on informal messaging platforms, particularly WhatsApp, is opening critical cybersecurity gaps across organisations. The 2025 KnowBe4 Africa Annual Cybersecurity Survey shows that 93 per cent of African professionals use WhatsApp for work purposes—surpassing email and even messages sent via enterprise-grade tools. Alarmingly, up to 80 per cent of these users operate from personal devices that often lack proper management or oversight, creating substantial blind spots in organisational defences.

Industry leaders stress that these messaging apps were never conceived for business use—lacking essential audit trails and compliance controls available on platforms like Microsoft Teams or Slack. WhatsApp’s ease of use and familiarity are undeniable draws, yet those same strengths work against organisations when they compromise control, compliance, and data security.

One of the most pressing concerns is data leakage—whether inadvertent or intentional—of sensitive internal content such as client lists, financial data or login credentials, through informal channels. The resulting “shadow IT” environment leaves conversations beyond corporate governance.

Regulatory requirements add another layer of risk. Informal platforms typically do not support the recovery or archiving of communications, making them ill-suited for sectors that rely on stringent record-keeping. Cases already exist where WhatsApp messages have been used as evidence in legal proceedings, illustrating their potential to exacerbate organisational liability.

Cyber threats such as phishing and identity theft further compound the danger. Attackers frequently exploit WhatsApp’s weak identity verification mechanisms. Once a user account is breached—often via SIM swap—the malicious actor gains unfettered access to prior conversations and contacts. Such attacks are commonly used to impersonate the user and deploy scams targeting both colleagues and clients.

Beyond purely technical threats, the use of these platforms can blur the line between work and personal life, heightening employee stress and lowering productivity. The barrage of informal messages can become a constant distraction, contributing to burnout and eroding well-being.

Some organisations have taken decisive action. NatWest has blocked WhatsApp, Facebook Messenger, and Skype on employee devices, citing the need to preserve compliance and transparency, particularly after multi-billion-dollar fines imposed on US banks for record-keeping failures linked to unmonitored messaging apps. The UK Financial Conduct Authority is also ramping up scrutiny of such practices, urging tighter governance over work communications.

In response to these risks, cybersecurity professionals advise that organisations adopt a multi-pronged strategy. Firms should actively provide secure, approved alternatives alongside clear communication protocols—rather than merely outlawing informal tools without offering viable replacements. Training on digital mindfulness should be central, emphasising reflection before sending messages, evaluation of content and recipient, and awareness of emotional triggers that cyber-threat actors often exploit.