People search MongoDB data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 3 MongoDB-linked incidents, with headline counts up to 275M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why MongoDB breach history matters
MongoDB operates in Software (United States). Across indexed rows, recurring themes include cloud and database misconfiguration. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2019 — 275M records, unsecured databases
Cataloged incident. Multiple unsecured MongoDB databases exposed approximately 275 million records in 2019. The databases had no authentication, allowing anyone to access and download the data. This was part of a broader trend of misconfigured NoSQL databases being left exposed. Exposed categories include Various PII depending on database; names, emails, phone numbers. BreachHistory cites approximately 275M+ affected records in this row. See the mongodb2019 and canonical BreachHistory entry.
2019 — — MongoDB: Poor security / misconfiguration, 202,000,000 records
Cataloged incident. Data breach reported. tech organization. Method: poor security. Source: Wikipedia List of data breaches. Exposed categories include Personal and demographic data. BreachHistory cites approximately 202M+ affected records in this row. See the mongodb2019-202000000-wiki2 and canonical BreachHistory entry.
2017 — — MongoDB: Three hacking groups are once again targeting…
Cataloged incident. Three hacking groups are once again targeting MongoDB databases, hijacking 26,000 open servers and asking for a ransom to release the data, according to security researcher Victor Gevers, chairman of the GDI Foundation.One of the hacking groups hijacked 22,000. And all groups are demanding about $650 to restore the data.The initial attacks were first discovered by hackers in late 2016 and continued into early 2017. These attacks were simple for hackers to launch: They simply scanned the internet Exposed categories include Personal information. BreachHistory cites approximately 26K+ affected records in this row. See the mongodb2017 and canonical BreachHistory entry.
Patterns and analysis
- Cloud and database misconfiguration — appears across multiple MongoDB catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Bookmark the MongoDB company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/mongodb · Latest: mongodb2019.
Sources: BreachHistory catalog (3 rows for MongoDB), company and regulator disclosures cited in individual breach records.