Abuse Prevention

Cybersecurity 09 Sep 2026 10 min read

Rate Limit by the Resource an Attacker Can Exhaust

A rate limit can look effective in testing and still fail against the abuse it was meant to control. The usual reason is not the counter or the algorithm. It is the key used to group requests. Suppose a password-recovery endpoint allows five requests per hour from each source address. That may slow one client, but it does not directly protect a user’s mailbox from receiving hundreds of recovery messages sent through many source addresses. The resource under pressure is the destination account or delivery channel, while the limit is counting something else.

Cybersecurity Rate Limiting

Cybersecurity 04 Sep 2026 10 min read

Design Rate Limits Around Security Identities

A rate limit sounds simple: allow only a certain number of requests during a period. The difficult security question is not the number. It is what you count together. Suppose a login endpoint allows five failed attempts per minute from each IP address. That can slow one client, but an attacker using many addresses can still make many guesses against the same account. Change the rule to five failures per account and another problem appears: anyone who knows a username may be able to keep that user’s account throttled.

Cybersecurity Rate Limiting

Cybersecurity 03 Sep 2026 6 min read

Limit Authentication Abuse with Layered Rate Controls

Authentication endpoints attract automation because each request can test credentials, probe account state, or trigger expensive verification work. Rate controls reduce the speed and value of this abuse, but a single requests-per-minute limit is rarely enough. A useful design combines several signals and responses. The objective is to make abusive behaviour slower and noisier while keeping legitimate users able to recover from mistakes, shared networks, and temporary failures. Protect the whole authentication surface Login is only one part of authentication. Review every endpoint that can verify, change, or recover identity state, including:

Cybersecurity Authentication