https://privacyunpacked.com/breaches/company/hallmark/feed.xml 2026-04-12T00:00:00Z Privacy Unpacked https://privacyunpacked.com/breaches/company/hallmark/#hallmark-2026-04-12 2026-04-12T00:00:00Z

A breach of Hallmark was added to Have I Been Pwned’s breach database on 12 April 2026. It affected 1,736,520 accounts. Exposed: Email addresses, Phone numbers, Names, Addresses and Support tickets. The breach began on 31 March 2026, 12 days before it was reported.