Cyber security trends UK businesses face in 2026

1. AI-generated phishing and deepfake fraud

Attackers now use generative AI to write fluent, well-targeted phishing emails and to clone voices for fraudulent payment requests, removing the spelling mistakes and awkward phrasing that used to be the giveaway. Verification processes for payment changes and urgent requests need to assume the voice or email on the other end could be fabricated.

2. Identity is the primary battleground

• Credential theft and token replay attacks continue to outpace malware as an initial access route
• Phishing-resistant MFA and conditional access are now baseline expectations, not advanced controls
• Attackers increasingly target help desks with social engineering to reset MFA directly

3. Supply chain and third-party risk

Breaches increasingly arrive through a trusted supplier, managed service provider or software update rather than a direct attack on the target. Reviewing supplier access, patching cadence and incident notification commitments has become a standard part of due diligence rather than an afterthought.

4. Ransomware has professionalised further

• Double and triple extortion, combining encryption, data theft and pressure on customers or partners
• Ransomware-as-a-service lowers the skill barrier for attackers running these campaigns
• Immutable, tested backups remain the single most effective recovery control

5. Regulatory and insurance pressure keeps rising

Cyber insurers scrutinise controls far more closely before renewal, and frameworks such as Cyber Essentials Plus and PCI DSS v4.x have tightened requirements. Businesses without evidenced baseline controls increasingly find cover harder to obtain or more expensive when they need it most.

What actually reduces risk in 2026

The controls that matter have not changed as fast as the attacks: phishing-resistant MFA, tested backup and recovery, managed detection and response, current patching, and regular staff awareness training remain the foundation. AI-driven threats make these fundamentals more urgent, not obsolete.