Expert Reveals Top Cyber Threats Organisations Will Encounter in 2026

By Adedapo Adesanya

Organisations in 2026 face a cybersecurity landscape markedly different from previous years, driven by rapid artificial intelligence adoption, entrenched remote work models, and increasingly interconnected digital systems, with experts warning that these shifts have expanded attack surfaces faster than many security teams can effectively monitor.

According to the World Economic Forum’s Global Cybersecurity Outlook 2026, AI-related vulnerabilities now rank among the most urgent concerns, with 87 per cent of cybersecurity professionals worldwide highlighting them as a top risk.

In a note shared with Business Post, Mr Danny Mitchell, Cybersecurity Writer at Heimdal, said artificial intelligence presents a “category shift” in cyber risk.

“Attackers are manipulating the logic systems that increasingly run critical business processes,” he explained, noting that AI models controlling loan decisions or infrastructure have become high-value targets. Machine learning systems can be poisoned with corrupted training data or manipulated through adversarial inputs, often without immediate detection.

Mr Mitchell also warned that AI-powered phishing and fraud are growing more sophisticated. Deepfake technology and advanced language models now produce convincing emails, voice calls and videos that evade traditional detection.

“The sophistication of modern phishing means organisations can no longer rely solely on employee awareness training,” he said, urging multi-channel verification for sensitive transactions.

Supply chain vulnerabilities remain another major threat. Modern software ecosystems rely on numerous vendors and open-source components, each representing a potential entry point.

“Most organisations lack complete visibility into their software supply chain,” Mr Mitchell said, adding that attackers frequently exploit trusted vendors or update mechanisms to bypass perimeter defences.

Meanwhile, unpatched software vulnerabilities continue to expose organisations to risk, as attackers use automated tools to scan for weaknesses within hours of public disclosure. Legacy systems and critical infrastructure are especially difficult to secure.

Ransomware operations have also evolved, with criminals spending weeks inside networks before launching attacks.

“Modern ransomware operations function like businesses,” Mitchell observed, employing double extortion tactics to maximise pressure on victims.

Mr Mitchell concluded that the common thread across 2026 threats is complexity, noting that organisations need to abandon the idea that they can defend against everything equally, as this approach spreads resources too thin and leaves critical assets exposed.

“You cannot protect what you don’t know exists,” he said, urging organisations to prioritise visibility, map dependencies, and focus resources on the most critical assets.