# AWS S3 Object Lock > AWS S3 Object Lock is a data protection feature for Amazon Simple Storage Service (S3) that allows users to store objects using a write-once-read-many (WORM) model. It is designed to prevent objects from being deleted or overwritten for a fixed amount of time or indefinitely, supporting regulatory compliance and ransomware protection. - URL: https://optimly.ai/brand/aws-s3-object-lock - Slug: aws-s3-object-lock - BAI Score: 92/100 - Archetype: Challenger - Category: Cloud Computing - Last Analyzed: April 11, 2026 - Part of: Amazon Web Services (AWS) (https://optimly.ai/brand/amazon-web-services-aws) ## Competitors - Netapp Snaplock (https://optimly.ai/brand/netapp-snaplock) ## Also Referenced By - Pure Storage Safemode (https://optimly.ai/brand/pure-storage-safemode) - Cohesity FortKnox (https://optimly.ai/brand/cohesity-fortknox) ## Buyer Intent Signals Problems: how to prevent ransomware from deleting cloud backups | Manual IAM & Versioning Policy: Manually managing versioning and using IAM policies to restrict delete permissions, though this does not provide a legal/technical 'WORM' guarantee. | Offsite Tape Storage (LTO) spinning down: Moving data to physical offsite tape storage which is inherently immutable once written and removed from the drive. | Standard Cloud Storage (No Lock): Storing data in standard S3 buckets without locking, accepting the risk of accidental or malicious deletion. Solutions: immutable cloud storage solutions | S3 WORM compliance | SEC 17a-4 compliant cloud storage | legal hold software for enterprise data | Enterprise Backup Software Immutability: Using third-party backup software like Veeam or Commvault that manages its own immutability layer on top of standard cloud storage.