Limitation du taux

Outcome: Complete the task with Limitation du taux (Rate Limiting). User context: Après plusieurs échecs de connexion, les nouvelles tentatives ralentissent. Un vrai utilisateur peut toujours utiliser la récupération de compte. Technical concept or control: Limitation du taux (Rate Limiting). Why it fits: Utilisez des quotas visibles pour réduire les abus, les attaques par force brute et les surcharges accidentelles. Do not use it when: N'utilisez jamais une limite globale unique qui bloque de manière injuste les réseaux partagés ou les rappels critiques. Engineering requirements: Define inputs, outputs, contracts, and rules that must always hold. Set authorization and input checks. Define failures, timeouts, retries, one-time effects, data moves, and compatibility limits. Operations: Add useful signals and logs that hide sensitive data. Set capacity limits and write an operator guide. Test recovery and rollback. Acceptance criteria: Contract and failure-path tests pass. Data and authorization rules still hold during retries and partial failures. Check performance limits, monitoring, recovery, and rollback. Evidence and limits (evidence boundary): Aucun standard officiel unique ne régit l’ensemble du terme. Sa signification peut varier selon les équipes, plateformes ou frameworks. Unknowns to confirm: Where the code runs, data stores, traffic shape, consistency needs, and the security boundary. Also confirm the compatibility period, service goals, and rollback limits.