October 3, 2023

MongoDB has announced the availability of Queryable Encryption, an end-to-end data encryption technology for securing sensitive application workflows.

The featureset is designed to reduce the risk of data exposure for organizations and helps businesses protect sensitive information when it is queried/in-use on MongoDB and  can be used with AWS Key Management Service, Microsoft Azure Key Vault, Google Cloud Key Management Service, and other services compliant with the key management interoperability protocol (KMIP) to manage cryptographic keys.

Queryable Encryption provides the capability to reduce the attack surface for confidential data in several use cases. Data remains encrypted at insert, storage, and query, with both queries and their responses encrypted over the wire and randomized for resistance to frequency analysis. However, there is a cost to space and time requirements for queries involving encrypted fields.


Customers can secure sensitive workloads for use cases in highly regulated or data-sensitive industries such as financial services, health care, government, and critical infrastructure by encrypting data while it is being processed and in use. Users can select the fields in MongoDB databases that contain sensitive data that need to be encrypted.

For an instance, if a legitimate user may need to query records using a customer’s savings account number. When configured with MongoDB Queryable Encryption, the content of the query and the data in the savings account field will remain encrypted when traveling over the network, while it is stored in the database, and while the query processes the data to retrieve relevant information and  it will becomes visible only to an authorized application end user with a customer-controlled decryption key to help prevent inadvertent data exposure or exfiltration by malicious actors,

The underlying encryption technology was developed by the MongoDB Cryptography Research Group. Organizations can freely examine the cryptographic techniques and code it uses.

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