Teachme Biz uses AWS Fargate and Amazon EKS Auto Mode as the application runtime environment. The OS-layer protection, which is generally the target of antivirus software for intrusion detection and prevention, is handled by Amazon Web Services (hereinafter referred to as "AWS").
In addition, the database, storage, and mail server all utilize AWS managed services (Amazon Aurora, Amazon S3, and Amazon SES), and are likewise managed by AWS.
Regarding the operational management of definition file updates, as this falls outside our company's jurisdiction due to the infrastructure configuration, we are unable to provide a response.