As we look towards 2026, resilience is the new uptime imperative: Designing application security and operations so the business keeps running even when systems are under stress. Deconstructing high availability versus fault toleranceTo build a resilient architecture, IT leaders must first distinguish between two terms often used interchangeably: High Availability (HA) and Fault Tolerance (FT). Malicious bots: Bad bots now make up 37 per cent of all internet traffic, according to the 2025 Imperva Bad Bot Report. Moving from SLAs to business resilienceUltimately, business and security leaders must look beyond standard provider SLAs, such as 99.999 per cent uptime. Iterate: Treat resilience as a continuous programme, involving regular reviews of runbooks, architecture, and SLAs as the threat landscape evolves.