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44 disclosed this week · 26,355 on record

Shadow

Disclosed Oct 12, 2023543,295 accountsUnverified

Social engineering attack on cloud gaming firm Shadow exposes customer data

French cloud gaming company Shadow told customers that an employee was tricked via Discord and a fake Steam game in late September 2023, letting attackers reach customer data at a SaaS provider. A hacker claimed to be selling data on more than 530,000 customers, which Shadow did not dispute.

What is known

People affected543,295 (accounts in the leaked data, per Have I Been Pwned)
DisclosedOct 12, 2023
DiscoveredSep 2023
HappenedSep 28, 2023
AttackPhishing
Data exposedDates of birthEmailsNamesAddresses
SectorGaming · FR
StatusUnverified: not yet confirmed by an official notice, a filing or the organization
Check your emailHave I Been Pwned

Sources

Notices filed

History of this record
source_type2026-09-25
aggregator to pressby seedSource
source_url2026-09-25
https://haveibeenpwned.com/Breach/Shadow to https://techcrunch.com/2023/10/12/shadow-hacked-customers-personal-data-stolen/by seedSource
country2026-09-25
empty to FRby seedSource
sector2026-09-25
tech to gamingby seedSource
attack2026-09-25
unknown to phishingby seedSource
disclosed2026-09-25
2024-08-11 to 2023-10-12by seedSource
discovered2026-09-25
empty to 2023-09by seedSource
summary2026-09-25
In September 2023, the cloud gaming provider Shadow suffered a data breach that exposed over half a million customer records . The data included email and physical addresses, names and dates of birth. to French cloud gaming company Shadow told customers that an employee was tricked via Discord and a fake Steam game in late September 2023, letting attackers reach customer data at a SaaS provider. A hacker claimed to be selling data on more tby seedSource
title2026-09-25
empty to Social engineering attack on cloud gaming firm Shadow exposes customer databy seedSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

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