Preventing Automated Security Decisions from Impacting Critical Events

Fastly has introduced a Challenge action for its DDoS Protection service to help organizations maintain security during high-traffic events such as sales, major sports streams, or product launches without incorrectly blocking legitimate users. The option can be applied at either the service or rule level and uses Dynamic Challenges to tailor responses based on request context, providing low-friction background JavaScript challenges for likely human users, CAPTCHAs for malicious bots, and optimized treatment for API traffic. Fastly can also validate some human traffic through Private Access Tokens without requiring a traditional challenge. The feature is intended for organizations expecting sudden legitimate traffic surges that could resemble DDoS attacks, allowing them to reduce false-positive blocking while continuing to mitigate application-layer volumetric threats.

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