# Data protection in Amazon ParallelCluster
The Amazon [shared responsibility model](https://www.amazonaws.cn/compliance/shared-responsibility-model/) applies to data protection in . As described in this model, Amazon is responsible for protecting the global infrastructure that runs all of the Amazon Web Services Cloud. You are responsible for maintaining control over your content that is hosted on this infrastructure. You are also responsible for the security configuration and management tasks for the Amazon Web Services services that you use. For more information about data privacy, see [Amazon China Region Legal Terms](https://www.amazonaws.cn/legal/).
For data protection purposes, we recommend that you protect Amazon Web Services account credentials and set up individual users with Amazon IAM Identity Center or Amazon Identity and Access Management (IAM). That way, each user is given only the permissions necessary to fulfill their job duties. We also recommend that you secure your data in the following ways:
+ Use multi-factor authentication (MFA) with each account.
+ Use SSL/TLS to communicate with Amazon resources. We require TLS 1.2 and recommend TLS 1.3.
+ Set up API and user activity logging with Amazon CloudTrail. For information about using CloudTrail trails to capture Amazon activities, see [Working with CloudTrail trails](https://docs.amazonaws.cn/awscloudtrail/latest/userguide/cloudtrail-trails.html) in the *Amazon CloudTrail User Guide*.
+ Use Amazon encryption solutions, along with all default security controls within Amazon Web Services services.
+ Use advanced managed security services such as Amazon Macie, which assists in discovering and securing sensitive data that is stored in Amazon S3.
+ If you require FIPS 140-3 validated cryptographic modules when accessing Amazon through a command line interface or an API, use a FIPS endpoint. For more information about the available FIPS endpoints, see [Federal Information Processing Standard (FIPS) 140-3](https://www.amazonaws.cn/compliance/fips/).
We strongly recommend that you never put confidential or sensitive information, such as your customers' email addresses, into tags or free-form text fields such as a **Name** field. This includes when you work with or other Amazon Web Services services using the console, API, Amazon CLI, or Amazon SDKs. Any data that you enter into tags or free-form text fields used for names may be used for billing or diagnostic logs. If you provide a URL to an external server, we strongly recommend that you do not include credentials information in the URL to validate your request to that server.
## Data encryption
A key feature of any secure service is that information is encrypted when it is not being actively used.
### Encryption at rest
Amazon ParallelCluster does not itself store any customer data other than the credentials it needs to interact with the Amazon services on the user's behalf.
For data on the nodes in the cluster, data can be encrypted at rest.
For Amazon EBS volumes, encryption is configured using the [`EbsSettings`](SharedStorage-v3.md#SharedStorage-v3-EbsSettings)/`Encrypted` and [`EbsSettings`](SharedStorage-v3.md#SharedStorage-v3-EbsSettings)/`KmsKeyId` settings in the [`EbsSettings`](SharedStorage-v3.md#SharedStorage-v3-EbsSettings) section. For more information, see [Amazon EBS encryption](https://docs.amazonaws.cn/AWSEC2/latest/UserGuide/EBSEncryption.html) in the Amazon EC2 User Guide.
For Amazon EFS volumes, encryption is configured using the [`EfsSettings`](SharedStorage-v3.md#SharedStorage-v3-EfsSettings)/`Encrypted` and [`EfsSettings`](SharedStorage-v3.md#SharedStorage-v3-EfsSettings)/`KmsKeyId` settings in the [`EfsSettings`](SharedStorage-v3.md#SharedStorage-v3-EfsSettings) section. For more information, see [How encryption at rest works](https://docs.amazonaws.cn/efs/latest/ug/encryption-at-rest.html#howencrypt) in the *Amazon Elastic File System User Guide.*
For FSx for Lustre file systems, encryption of data at rest is automatically enabled when creating an Amazon FSx file system. For more information, see [Encrypting data at rest](https://docs.amazonaws.cn/fsx/latest/LustreGuide/encryption-at-rest.html) in the *Amazon FSx for Lustre User Guide*.
For instance types with NVMe volumes, the data on NVMe instance store volumes is encrypted using an XTS-AES-256 cipher implemented on a hardware module on the instance. The encryption keys are generated using the hardware module and are unique to each NVMe instance storage device. All encryption keys are destroyed when the instance is stopped or terminated and cannot be recovered. You cannot disable this encryption and you cannot provide your own encryption key. For more information, see [Encryption at rest](https://docs.amazonaws.cn/AWSEC2/latest/UserGuide/data-protection.html#encryption-rest) in the *Amazon EC2 User Guide*.
If you use Amazon ParallelCluster to invoke an Amazon service that transmits customer data to your local computer for storage, then refer to the Security and Compliance chapter in that service's User Guide for information on how that data is stored, protected, and encrypted.
### Encryption in transit
By default, all data transmitted from the client computer running Amazon ParallelCluster and Amazon service endpoints is encrypted by sending everything through a HTTPS/TLS connection. Traffic between the nodes in the cluster can be automatically encrypted, depending on the instance types selected. For more information, see [Encryption in transit](https://docs.amazonaws.cn/AWSEC2/latest/UserGuide/data-protection.html#encryption-transit) in the *Amazon EC2 User Guide*.
## See also
+ [Data protection in Amazon EC2 ](https://docs.amazonaws.cn/AWSEC2/latest/UserGuide/data-protection.html)
+ [Data protection in EC2 Image Builder](https://docs.amazonaws.cn/imagebuilder/latest/userguide/data-protection.html)
+ [Data protection in Amazon CloudFormation](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/security-data-protection.html)
+ [Data protection in Amazon EFS](https://docs.amazonaws.cn/efs/latest/ug/efs-backup-solutions.html)
+ [Data protection in Amazon S3](https://docs.amazonaws.cn/AmazonS3/latest/dev/DataDurability.html)
+ [Data protection in FSx for Lustre](https://docs.amazonaws.cn/fsx/latest/LustreGuide/data-protection.html)