// UNCLASSIFIED // CLEARED FOR PUBLIC RELEASE //
FILE BRC-newsDTG 0600Z
ColdRecon / Breach Radar / Hallmark
Breach Record

Hallmark

DISCLOSED 2026-04-13 · STOLEN CREDS · 1,700,000 RECORDS EXPOSED

Hallmark experienced a data breach affecting 1.7 million customers. The breach occurred through a compromise of their Salesforce environment. Exposed data includes customer records.

The record

What we know

Disclosed
2026-04-13
Attack vector
Stolen Creds
Sector
retail
Records exposed
1,700,000
Data classes exposed
customer records
ColdRecon assessment

Could a positive-security control have prevented this?

Verdict · unclear · opinion

The article mentions a Salesforce compromise but provides no details on how the attacker gained access, so it is unclear whether a positive-security model would have prevented the breach.

Our assessments are opinion, grounded in the cited public facts. Read them critically.

Sources

Cited reporting

Similar vector · recent

Other stolen creds breaches on file

This page is the permanent ColdRecon entry for the Hallmark disclosure. It updates if new public reporting emerges. All tracked breaches →

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