An accessibility baseline is the minimum set of design and testing requirements a website or application must meet so it works with assistive technologies such as screen readers, keyboard-only navigation, zoom, and high-contrast settings. It usually covers readable labels, logical focus order, visible controls, sufficient color contrast, and predictable page structure.
In cyber security, accessibility is part of secure and trustworthy service delivery. If a login, checkout, password reset, or support form is inaccessible, legitimate users may be blocked from accessing accounts or reporting abuse. That creates operational risk and can push users toward unsafe workarounds, such as sharing credentials or using unofficial support paths. Defenders use accessibility baselines in development and QA to catch broken forms, hidden error messages, and interface changes that can also disrupt security workflows. Attackers may exploit poor accessibility by hiding malicious controls, confusing users with ambiguous prompts, or making recovery and dispute processes harder to reach.