4SELLERS Reports Ransomware Attack, Says Systems Are Restored

Summary
4SELLERS says a ransomware attack on April 30 impaired parts of its systems. The company reports services are restored, while an investigation into possible data impact continues; it says there is no current indication that sensitive data was compromised.
Key points
- 4SELLERS said a targeted ransomware attack occurred on the night of April 30 and impaired parts of its systems.
- The company says its systems are available again, though some internal processes may remain slower or restricted.
- External specialists and forensic investigators are helping assess the incident; whether data was affected remains under investigation.
- 4SELLERS says there are currently no indications that sensitive payment or account data, passwords, or personal data were compromised.
- The company says it notified authorities, filed a criminal complaint, and involved the data protection supervisory authority as a precaution.
- A reader cited by the article alleges that 4SELLERS required customer access via RD Gateway and software users to have domain-administrator rights; these claims are not independently verified.
Article Details
- Victim Organization
- 4SELLERS
- Incident Type
- Ransomware cyberattack
- Incident Date
- 2026-04-30
- Disclosure Date
- 2026-05-05
- Operational Impact
- Parts of 4SELLERS' systems were affected. The company said its systems were available again and customers could generally continue their operations, although some internal processes might remain slower or restricted. Whether any data was affected was still under investigation.
- Ransom Or Extortion
- The company described the incident as a ransomware attack. No ransom demand or extortion activity was reported.
- Claim Status
- confirmed
People
Vendors
4SELLERSDer Dienstleister 4SELLERS, der sich als "einer der größten deutschen Anbieter für E-Commerce-Lösungen" bezeichnet, ist Opfer eines Cyberangriffs geworden.beforecryptDabei werden wir von externen Spezialisten unterstützt, unter anderem von beforecrypt, einem führenden Anbieter im Bereich Cybersecurity und Incident Response.
