Breachesby GlyphHallmark
Disclosed Apr 12, 20261,736,520 accountsUnverified
In March 2026, Hallmark suffered an alleged breach and subsequent extortion after attackers gained access to data stored within Salesforce. The data was later published after the extortion deadline passed, exposing 1.7M unique email addresses across both Hallmark and the Hallmark+ streaming service, along with names, phone numbers, physical addresses and support tickets.
What is known
| People affected | 1,736,520 (accounts in the leaked data, per Have I Been Pwned) |
|---|---|
| Disclosed | Apr 12, 2026 |
| Happened | Mar 31, 2026 |
| Attack | Extortion |
| Data exposed | EmailsNamesPhone numbersAddresses |
| Sector | Tech |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
| Check your email | Have I Been Pwned |
Sources
Notices filed
History of this record
First recordedby backfillSource
First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.