5 Common Mistakes to Avoid When Using AWS S3 - GeeksforGeeks

Table of Content - What is AWS S3? - 5 Common Mistakes to Avoid When Using AWS S3 - - 1. Misconfiguration of Bucket Permissions - 2. Poor Management of Storage Classes - 3. Ignoring Data Encryption - 4. Failing to Turn on Versioning - 5. Not Monitoring Costs and Usage … ## 5 Common Mistakes to Avoid When Using AWS S3 S ### 1. Misconfiguration of Bucket Permissionsons One of the most impactful and common errors in the use of **AWS S3** is misconfiguration of permissions in buckets, which basically allows sensitive data to be exposed to the public. S3 buckets may hold a tremendous amount of sensitive information, including client information, financial documents, or private content. In case these permissions are not well set, unauthorized users might get access and cause data leakage and reputation loss. **Common Scenarios:** - **Public Buckets**: Users more often than not leave their S3 buckets open to the world, allowing anyone on the internet to list items and read data from inside. - **Overly permissive access control lists**: Poor configuration to overly permissive ACLs can lead to unnecessary exposure of your data. … ### 2. Poor Management of Storage Classesses **AWS S3 ** contains different storage classes for various use cases-right from most active to archival storage. However, most of its users are wont to optimize their data according to access patterns. If this isn't carefully fine-tuned, it may lead to huge cost inefficiencies. **Common Scenarios:** - By default, AWS S3 places data in the S3 Standard storage class. S3 Standard is a great fit for data in hot use, but it's relatively expensive for infrequently accessed data. - **Using Inappropriate Storage Classes**: Not migrating data to storage classes such as **S3 Intelligent-Tiering, S3 Glacier, and S3 Glacier Deep Archive**, where possible, can lead to unnecessary charges. … - **Intelligent-Tiering**: With S3 Intelligent-Tiering, data is moved automatically in between the frequent and infrequent access tier based on your usage patterns so that you pay only for what you use when you use it, without having to manage data transitions manually. ... ### 5. Not Monitoring Costs and Usageage AWS S3 pricing is flexible, but if not monitored closely, the cost spirals out of control pretty fast. As a matter of fact, most users fail to monitor the use of S3, hence leading to unexpected bills, especially when volumes are big, or traffic is heavy. **Common Scenarios:** - **Avoiding Unnecessary Data Storage**: Keeping infrequently accessed data in S3 for a long period without deleting or relocating to cheaper storage classes can be more costly. - **Expensive in transferring data**: High amounts of data transfers out of S3 are expensive; therefore, high outbound traffic applications incur very high costs.