Canonical Data Breach History
WebsiteWe deliver open source to the world faster, more securely and more cost effectively than any other company. We're also the publishers of Ubuntu, the world’s most popular enterprise Linux from cloud to edge, together with a passionate global community of 200,000+ contributors. Ubuntu means 'humanity to others'. We chose it because it embodies the generosity at the heart of open source, the new normal for platforms and innovation. Together with a community of 200,000, we publish an operating
This page shows all data breaches of Canonical. View the complete breach timeline, records exposed, root causes, and AI breach risk score. BreachHistory tracks disclosed data breaches worldwide.
Data Breach Timeline — All Canonical Breaches
- 2026 2026 Canonical / Ubuntu — sustained DDoS, outages, and extortion-style demands (May) Unknown records Share
- 2016 2016 — Ubuntu Linux forum hacked, data of 2 million users… 2.0M records Share
Canonical Data Breach Summary
This page tracks the Canonical data breach history and cybersecurity incidents affecting Canonical (United Kingdom). BreachHistory currently indexes 2 publicly disclosed or catalogued incidents spanning 2016 through 2026, with approximately 2.0 million records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.
The Canonical breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed.
Largest Canonical Data Breaches
The largest indexed incidents include the 2016 — Ubuntu Linux forum hacked, data of 2 million users…. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Canonical or a regulator. Below is the list of large data breaches:
- 2016 2016 — Ubuntu Linux forum hacked, data of 2 million users… — about 2.0M records exposed · Catalogued incident
What Information Was Exposed?
Depending on the incident, exposed data may include passwords and login credentials, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.
Canonical Data Breach 2026
At the time of this update, BreachHistory catalogues 1 2026 incident related to Canonical. Most recent entry: 2026 Canonical / Ubuntu — sustained DDoS, outages, and extortion-style demands (May). New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.
What To Do If You Were Affected
If you believe your account may have been involved in a Canonical data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.
This Canonical breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.