# Incident 2023-12-04: Data leak and loss in some free tier databases

DevFeed: [Incident 2023-12-04: Data leak and loss in some free tier databases](<https://devfeed.tech/articles/incident-2023-12-04-data-leak-and-loss-in-some-free-tier-databases-5975.md>)

Original publisher: [Read original article](<https://turso.tech/blog/incident-2023-12-04-data-leak-and-loss-in-some-free-tier-databases-7cba5bc7>)

Author: Glauber Costa

Published: 2023-12-05T00:00:00Z

Content type: news

Language: en

Sources: [Turso Blog](<https://devfeed.tech/sources/turso-blog.md>)

Topics: [incident](<https://devfeed.tech/topics/incident.md>), [Turso](<https://devfeed.tech/topics/turso.md>), [bug](<https://devfeed.tech/topics/bug.md>), [Database](<https://devfeed.tech/topics/database.md>), [data](<https://devfeed.tech/topics/data.md>), [Amazon S3](<https://devfeed.tech/topics/amazon-s3.md>), [Availability](<https://devfeed.tech/topics/availability.md>)

Tags: [availability](<https://devfeed.tech/tags/availability.md>), [backup](<https://devfeed.tech/tags/backup.md>), [backups](<https://devfeed.tech/tags/backups.md>), [bug](<https://devfeed.tech/tags/bug.md>), [data](<https://devfeed.tech/tags/data.md>), [databases](<https://devfeed.tech/tags/databases.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [incident](<https://devfeed.tech/tags/incident.md>), [s3](<https://devfeed.tech/tags/s3.md>), [turso](<https://devfeed.tech/tags/turso.md>)

## AI overview

Turso reports a December 4, 2023 incident in which a migration bug assigned an empty backup identifier to 0.07% of managed databases. This caused affected databases to share backup storage, resulting in a data leak and possible loss of data written after December 1. Turso fixed the issue by correcting the migration and recreating the databases from the correct backups.

## Source excerpt

Data leak and loss in some free tier databases on 2023-12-04