Zscaler, Inc.

Clifford Kahn

John A Chanak

Jian Liu

Victor Pavlov

Srinivas Kavuri

Systems and methods for defending against volumetric attacks, implemented in a cloud-based system. Embodiments include steps of, monitoring flows and a rate of requests to a Data Center (DC); receiving a request from an address to the DC, the request being for a service in a cloud-based system; determining if the address has been successfully authenticated within a past predetermined time period; responsive to the address not having been successfully authenticated within the past time period, and one of (i) the rate of requests being above a threshold or (ii) the number of flows being above a threshold, placing the address in a penalty box for a predetermined amount of time; and blocking requests from the address in the penalty box for the predetermined amount of time.

Growing community of inventors

Santa Clara, CA, United States of America

Clifford Kahn