Personal Data Leak Monitor

Hallmark data breach

1.74M accounts from Hallmark (hallmark.com) were exposed in this breach. Besides email addresses, it included names, phone numbers and physical addresses.

Breach date
March 31, 2026
Accounts
1,736,520
Added to the database
April 12, 2026

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What leaked

Email addressesNamesPhone numbersPhysical addressesSupport tickets

What to do now

  1. Do not tap links in emails claiming to be that service
  2. Expect scam emails that use your real name
  3. Be alert to fake delivery or unpaid-bill texts and calls
  4. Be careful with unexpected mail or visitors

Tools that help with this breach

Norton 360PaidVisit the official site →(opens in a new tab)ESETPaidVisit the official site →(opens in a new tab)

About this breach

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.

Source: Have I Been Pwned (CC BY 4.0)

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