Overview
Global organizations often have to choose between strong bot defense and a smooth user experience. Enterprise CAPTCHA removes that trade-off. It uses localized edge networks and a non-intrusive risk engine to filter out malicious traffic quietly, so legitimate users get through easily. Large enterprises can then meet strict requirements such as WCAG 2.1 AAA accessibility and zero-PII privacy standards.
This organization is one of the world’s leading international airline alliances, with 18+ member carriers flying to hundreds of destinations. Its shared digital platform lets millions of travelers every day search flights, manage accounts, redeem alliance-wide loyalty rewards, and book across carriers.
Operating at that scale means serving a highly diverse group of passengers and meeting strict legal, technical, and accessibility requirements in many jurisdictions.
The Challenge
Securing shared booking portals and cross-carrier logins across a global footprint created four problems at once:
- High-volume automated attacks. Shared endpoints such as award search and account login were prime targets for credential stuffing, inventory scraping, and brute-force bots.
- Network limits in Mainland China. Standard CAPTCHA challenges often loaded slowly or failed behind China’s network perimeter, so many travelers abandoned their bookings.
- Strict accessibility requirements (WCAG 2.1 AAA). Public transport services face tough legal standards. Image-matching puzzles shut out screen-reader users, visually impaired travelers, and people who navigate by keyboard.
- Friction in the passenger journey. Traditional challenges made real travelers solve puzzles, which lowered conversion across key booking flows.
The Solution
The alliance replaced its legacy bot tools with MTCaptcha, an adaptive, privacy-first platform built for enterprise scale and multi-region compliance. Each challenge was addressed directly:
- Invisible verification. MTCaptcha uses background proof-of-work and risk analysis, so most passengers pass without ever seeing a puzzle. Over 95% of legitimate travelers are verified invisibly, which keeps booking flows moving.
- Reliable delivery in Mainland China. Localized edge infrastructure and optimized CDN routing keep MTCaptcha loading where standard CAPTCHAs time out. Assets are delivered in under 100 ms, with 99.9%+ uptime inside Mainland China.
- Built-in WCAG 2.1 AAA accessibility. MTCaptcha was designed for full AAA compliance from the start. It supports screen readers and full keyboard navigation, and offers high-contrast modes and multi-language audio challenges across all member airline sites.
- Zero-PII privacy. Travel platforms operate under strict privacy laws such as GDPR and CCPA. MTCaptcha stops automated threats without collecting personally identifiable information or setting tracking cookies across independent carrier sites.
The Results
An adaptive risk engine now protects every member carrier’s digital flows, improving both security and the passenger experience.
Business Impact
The alliance showed that enterprise-grade bot protection does not have to cost user experience or compliance. It now secures cross-border booking flows while keeping them accessible to millions of travelers every day.
