AWS Storage Blog

Category: Security, Identity, & Compliance

Access Analyzer for Amazon S3

Advanced notice: Amazon S3 to disable the use of SSE-C encryption by default for all new buckets and select existing buckets in April 2026

Starting on April 6, 2026, we will be changing how server-side encryption with customer-provided keys (SSE-C) is enabled for Amazon S3 buckets. With this change, SSE-C will be disabled by default on all new S3 general purpose buckets. Furthermore, SSE-C will also be disabled for all existing buckets in Amazon Web Services (AWS) Accounts that […]

Scan backups for malware with Amazon GuardDuty Malware Protection for AWS Backup

Data loss events from malware attacks can compromise your backups, putting your recovery strategy at risk. Organizations rely on backups as a critical defense against data loss, but these same backups can inadvertently preserve malware that has infiltrated production systems without being detected and removed. When malicious events occur, customers face a significant challenge: determining […]

Amazon S3 Multi-Region Access Points

How to use Amazon S3 Multi-Region Access Points to streamline and reduce the cost of writing across AWS Regions

Large global organizations often struggle to efficiently manage data copies across different geographic regions when using distributed object storage services. Although several approaches exist for cross-region data writing, common solutions such as data replication or streaming can be costly and introduce latency issues. Many customers have core services deployed globally across multiple Amazon Web Services […]

Encrypt AWS Backup logically air-gapped vaults with customer-managed keys

Organizations in regulated industries often mandate control over encryption keys when storing data in the cloud to meet compliance requirements. Although AWS Backup logically air-gapped vault provides secure, isolated backup storage, these customers have needed the ability to use their own AWS Key Management Service (AWS KMS) customer-managed keys (CMKs) to provide greater control of […]

Build intelligent ETL pipelines using AWS Model Context Protocol and Amazon Q

Data scientists and engineers spend hours writing complex data pipelines to extract, transform, and load (ETL) data from various sources into their data lakes for data integration and creating unified data models to build business insights. The process involves understanding the source and target systems, discovering schemas, mapping source and target, writing and testing ETL […]

Cross-account Amazon S3 bulk transfers with enhanced AWS KMS support

Cross-account Amazon S3 bulk transfers with enhanced AWS Key Management Service (AWS KMS) support become increasingly critical as organizations grow and accumulate vast amounts of digital assets across their enterprise. Managing millions or even billions of files presents unique challenges, especially when these files need to be moved securely between different AWS accounts. Operations such […]

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Derive intelligent storage insights using S3 Metadata and Model Context Protocol (MCP)

Organizations face mounting challenges in managing and operationalizing their ever-growing data assets for machine learning and analytics workflows. When dealing with billions and trillions of objects, teams struggle to find what data they have and how to efficiently find specific datasets. Without proper data discovery and metadata management, teams spend valuable time searching for relevant […]

Accelerating Amazon S3 Batch Operations at scale with on-demand manifest generation

Modern enterprises routinely manage billions of objects across their cloud storage environments, needing efficient bulk operations for disaster recovery, compliance management, data transfer, and cost optimization. Performing these operations manually or through custom scripts becomes impractical at scale, often creating operational bottlenecks when time-sensitive actions are necessary. Organizations frequently need to identify and process specific […]

Build centralized cross-Region backup architecture with AWS Control Tower

Managing data protection at scale is a critical challenge for the modern enterprise. As organizations grow, their data becomes increasingly distributed, making it difficult to implement consistent backup policies that ensure comprehensive coverage. IT teams must balance competing needs of compliance requirements, resource protection, and operational efficiency – all while struggling to validate and orchestrate […]

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Efficiently verify Amazon S3 data at scale with compute checksum operation

Organizations across industries must regularly verify the integrity of their stored datasets to protect valuable information, satisfy compliance requirements, and preserve trust. Media and entertainment customers validate assets to make sure that content remains intact, financial institutions run integrity checks to meet regulatory obligations, and research institutions confirm the reproducibility of scientific results. These verifications […]