Apollo.io Data Breach History
WebsiteApollo.io is the all-in-one AI sales platform that revolutionizes how businesses find leads, engage prospects, and close deals. Built on an always up-to-date database of more than 210 million B2B contacts and 35 million companies, Apollo empowers sales teams with intelligent tools like AI agents, email deliverability, automation, and call assistance. Trusted by millions of professionals across 500,000 organizations, Apollo streamlines your entire go-to-market process. Whether you're a rapidly gr
This page shows all data breaches of Apollo.io. View the complete breach timeline, records exposed, root causes, and AI breach risk score. BreachHistory tracks disclosed data breaches worldwide.
Data Breach Timeline — All Apollo.io Breaches
- 2018 2018 apollo-corp — Have I Been Pwned verified incident: Apollo 125.9M records Share
- 2018 2018 Unsecured database — 125M contacts, 9B data points 125.0M records Share
Apollo.io Data Breach Summary
This page tracks the Apollo.io data breach history and cybersecurity incidents affecting Apollo.io (United States). BreachHistory currently indexes 2 publicly disclosed or catalogued incidents spanning 2018, with approximately 250.9 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 Apollo.io 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 Apollo.io Data Breaches
The largest indexed incidents include the 2018 apollo-corp — Have I Been Pwned verified incident: Apollo and the 2018 Unsecured database — 125M contacts, 9B data points. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Apollo.io or a regulator. Below is the list of large data breaches:
- 2018 2018 apollo-corp — Have I Been Pwned verified incident: Apollo — about 125.9M records exposed · Catalogued incident
- 2018 2018 Unsecured database — 125M contacts, 9B data points — about 125.0M records exposed · Catalogued incident
What Information Was Exposed?
Depending on the incident, exposed data may include email addresses, phone numbers, names, physical addresses, payment card and financial account data, health and medical (PHI) records, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.
Apollo.io Data Breach 2026
At the time of this update, no Apollo.io 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 Apollo.io 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 Apollo.io 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.