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Company intelligence

Mytheresa cybersecurity incidents and threat signals

mytheresa.com

Mytheresa logo

This company page brings together public reporting currently associated with Mytheresa. It reflects signals published by Shadow Tier and should not be read as a complete incident history.

2

Published signals

currently linked to this company

0

Last 28 days

recent published signals

0

Last 90 days

recent published signals

2

High or critical

confidence classifications

August 6, 2026

Latest report

most recent published signal

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Based on all published signals currently linked to Mytheresa. Affected countries come from victim data; the company country above remains a separate profile fact. Counts describe this reporting set, not overall incident prevalence.

Company signals

All published signals involving Mytheresa

Mytheresa logoPhishing
High

Mytheresa experiences data breach affecting over 84,000 records

The Mytheresa data breach exposed 84,108 records including Email addresses, Names, Partial credit card data, Phone numbers, Physical addresses, Purchases, Salutations. This breach has been verified by HaveIBeenPwned. Affected users should check HaveIBeenPwned.com and take immediate steps to protect their accounts. In April 2026, the luxury fashion e-commerce platform Mytheresa was listed as a victim of the ShinyHunters "pay or leak" extortion group . After the ransom deadline passed, the group publicly released the data which contained 84k unique email addresses. The exposed data also included names, phone numbers, physical addresses, purchases and partial credit card data including card type, last 4 digits and expiry date. The following data types were included in the breach: If you had an account with Mytheresa, take these steps immediately: Check if your account was affected at HaveIBeenPwned.com Watch for phishing emails that reference the breach or impersonate the affected company Contact your bank or card issuer to request a replacement card Review recent statements for unauthorized transactions Be alert for social engineering attempts using your exposed personal information Enable two-factor authentication on the affected service if available Consider using a password manager to generate unique passwords for each service Sherlock Forensics investigates data

Mytheresa

FAQ

Questions about Mytheresa cybersecurity reporting

What does the Mytheresa page include?

It combines a reviewed organization profile with all current published Shadow Tier signals explicitly linked to Mytheresa.

Does every mention of Mytheresa appear here?

No. A signal must contain a reliable company connection and meet the publication criteria; incidental or ambiguous mentions are excluded.

Why can the incident count change?

The page follows current published reporting. Counts change as new evidence is added, classifications are reviewed, or older signals leave the reporting window.