s3 3 Lab — S3 Misconfiguration Deep Dive: Public Buckets, Presigned URLs, Terraform State, and Snapshot Exposure Jun 30, 2026 Lab — EC2 Attack Chain: Reverse Shell, IMDS Credential Theft, and GuardDuty Detection Jun 20, 2026 AWS S3 — Object Storage, Storage Classes, Security, and Replication May 29, 2026