Ohio State University Data Breach History

This page tracks the Ohio State University data breach history and cybersecurity incidents affecting Ohio State University (United States). BreachHistory currently indexes 6 publicly disclosed or catalogued incidents spanning 2005 through 2012, with approximately 1.5 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 Ohio State University 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 Ohio State University Data Breaches

The largest indexed incidents include the 2010 — Ohio State University: Hacked, 760K records, the 2010 — Ohio State University: Students, professors and other University…, and the 2005 — Ohio State University: A laptop containing patient information was stolen…, along with additional historical incidents involving exposed passwords, public databases, and large-scale data scraping. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Ohio State University or a regulator. Below is the list of large data breaches:

• 2010 2010 — Ohio State University: Hacked, 760K records — about 760.0K records exposed · Catalogued incident
• 2010 2010 — Ohio State University: Students, professors and other University… — about 750.0K records exposed · Catalogued incident
• 2005 2005 — Ohio State University: A laptop containing patient information was stolen… — about 15.0K records exposed · Catalogued incident
• 2007 2007 — Ohio State University: A hacker accessed the names, Social Security… — about 14.0K records exposed · Catalogued incident
• 2008 2008 — Ohio State University: Personal information on faculty and staff members… — about 192 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.

Ohio State University Data Breach 2026

At the time of this update, no Ohio State University 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 Ohio State University 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 Ohio State University 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.