On August 12th, Microsoft became aware of a vulnerability in Azure Cosmos DB. The vulnerability could potentially expose the primary keys for Azure Cosmos DB data stores. It was reported through an external security researcher in confidence so at the time of this post, there’s no known exploits of information. The discovery explained that the primary read-write keys for the account can be exposed through Jupyter notebooks. This flaw has been fixed. To regenerate your keys, you should follow the doc found on the Microsoft site here.