Exact Sciences Data Breach Exposes 10,869,543 User Records

What happened

According to public breach records, the Exact Sciences data breach on 2026-07-15 is reported to have exposed the personal information of 10,869,543 accounts.

In July 2026, Exact Sciences (now owned by Abbott Laboratories) was the target of a ShinyHunters "pay or leak" extortion campaign. The group claimed to have obtained data from the company's cancer diagnostics business, which they later published publicly. The breach contained 10.9M unique email addresses belonging to customers, patients and healthcare providers, along with names, addresses, phone numbers and health records. Abbott subsequently published a public notice advising that "some of the impacted files contain personal information and/or personal health information" and that more specific information would follow once their review of the incident was complete. For context, Exact Sciences is the maker of the Cologuard at-home colorectal cancer screening test.

• Change your password immediately if you have an account with Exact Sciences.
• Enable two-factor authentication on any accounts using the same email address.
• Monitor your accounts for suspicious activity and unauthorized access.
• Watch for phishing attempts using your exposed personal information.
• Consider using a password manager to generate unique passwords for each service.

What data was exposed

The following types of personal data were compromised:

• Dates of birth
• Email addresses
• Genders
• Names
• Personal health data
• Phone numbers
• Physical addresses

Breach details

This summary is compiled from public breach-notification data and known leak databases. Figures reflect what those sources report and may be revised as more is learned. If something here looks wrong or you think your information is involved, contact our support team.

We report breaches as a factual record to help people check their exposure. Inclusion here is not an allegation of wrongdoing or negligence by Exact Sciences; it reflects a publicly reported security incident.

What to do now

Based on the data exposed in this breach, here are the steps you should take:

• Change your Exact Sciences password immediately, and change it anywhere you reused the same credentials.
• Enable two-factor authentication on your Exact Sciences account and any other account that shared that password.
• Watch for targeted phishing emails, as your personal information could be used to craft convincing scam messages.
• Monitor your financial accounts and credit reports for signs of unauthorized activity.
• Consider using a password manager to ensure each account has a unique, strong password.

Check your exposure

Data breaches are one of the ways your personal information ends up on data broker sites. Run a free scan to see which sites are exposing your personal data — and take action to remove it.

Sources

• Have I Been Pwned: Exact Sciences Data Breach