Patent ID: 11916895
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A system, comprising:
one or more processors; and
memory storing computer-executable instructions that, if executed, cause the one or more processors to:
receive, by a network connected device service, a digital certificate;

determine a set of parameters of the digital certificate;
identify, by the network connected device service, an identified digital certificate cluster of a set of digital certificate clusters associated with a customer of a plurality of customers of the network connected device service, the identified digital certificate cluster comprising a new digital certificate cluster or one of a set of existing digital certificate clusters based at least in part on the set of parameters of the digital certificate;
add, by the network connected device service, the digital certificate to the identified digital certificate cluster;
as a result of an amount of digital certificates in the set of digital certificate clusters exceeding a first threshold value, determine, by the network connected device service, that the digital certificate is anomalous based on a size of the identified digital certificate cluster and a quantity of certificates in the set of digital certificate clusters, wherein the threshold value is determined based at least in part on weights of individual parameters of the set of parameters that are specified by the customer; and
perform a security operation as a result of the determination that the digital certificate is anomalous.