Hallmark
hallmark.com
About This Breach
Hallmark, a greeting card and media company, experienced an alleged breach and extortion incident in March 2026 involving data stored in Salesforce, with the data later published exposing 1.8M unique email addresses across Hallmark and Hallmark+ accounts, along with names, phone numbers, and physical addresses.
Data Exposed
Breach Details
| Breach Type | Data Breach |
| Searchable | Yes |
| Verified | Yes |
| Sensitive Data | No |
| Reference | No reference available |
Frequently Asked Questions
When did the Hallmark data breach happen?
Hallmark was breached in Mar 2026. The breach was added to the XposedOrNot index on April 12, 2026.
How many records were exposed in the Hallmark breach?
1,796,130 records were exposed, making it the #312 largest of the 763 breaches in our index.
What data was exposed in the Hallmark breach?
The exposed data includes: Email addresses, Names, Phone numbers, Physical addresses.
What should I do if I was affected by the Hallmark breach?
Change your password on the affected service (and anywhere you reused it), turn on two-factor authentication, and set up free breach alerts on XposedOrNot so you know the moment your email appears in a new breach.
What Should You Do?
Enable Two-Factor Authentication
Add 2FA on all supported accounts using an authenticator app like Google Authenticator or Authy.
Watch for Phishing Calls & SMS
Be cautious of unexpected calls or texts asking for personal information.
Beware of Scam Mail
Be skeptical of unexpected correspondence requesting personal details.
Monitor Your Accounts
Set up login alerts and review account activity regularly for suspicious access.