ON24 Data Breach History
WebsiteON24 is on a mission to help businesses bring their go-to-market strategy into the AI era and drive cost-effective revenue growth. Through its leading intelligent engagement platform, ON24 enables customers to combine our leading first-party experiences with personalization and content as well as capture and act on engagement insights, accelerating the buyer journey and propelling pipeline forward. ON24 provides industry-leading companies, including 4 of the 5 largest global software companies,
This page shows all data breaches of ON24. View the complete breach timeline, records exposed, root causes, and AI breach risk score. BreachHistory tracks disclosed data breaches worldwide.
Data Breach Timeline — All ON24 Breaches
ON24 Data Breach Summary
This page tracks the ON24 data breach history and cybersecurity incidents affecting ON24 (United States). BreachHistory currently indexes 1 publicly disclosed or catalogued incident spanning 2021, with approximately an unknown number of 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 ON24 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 ON24 Data Breaches
Indexed ON24 incidents are listed below. Where a public count is unavailable, the catalog shows unknown records exposed. Open each page for attack method, data types, and sources.
- 2021 2021 ON24 — ransomware on internal systems; current/former employee and beneficiary data — about Unknown records exposed · Catalogued incident
What Information Was Exposed?
Depending on the incident, exposed data may include email addresses, passwords, phone numbers, names, profile information, account identifiers, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.
ON24 Data Breach 2026
At the time of this update, no ON24 data breach has been catalogued for 2026. 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 ON24 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 ON24 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.