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Holtzbrinck

Holtzbrinck Vendor Cyber Rating & Cyber Score

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Holtzbrinck is a global group of companies dedicated to exploring and publishing ideas, information, and stories that win hearts, change minds, and improve lives. A team of 14,000 people works across the globe to enhance student learning, bring authors’ works to life, advance scientific breakthroughs, and deliver high-quality journalism. By combining excellence in content with innovation and technology, the group empowers others to explore beyond boundaries. Holtzbrinck’s diverse portfolio includes Springer Nature, St. Martin’s Press, Tor/Forge, Digital Science, DIE ZEIT, Rowohlt, S. Fischer, and Macmillan Learning, — each driving innovation in its field. United by a commitment to championing knowledge, embracing complexity, and


Holtzbrinck A.I CyberSecurity Scoring

Incident Details
Holtzbrinck
Company Information
Website:https://holtzbrinck.com/en/
Employees number:5,318
Number of followers:15,682
NAICS:51
Industry Type:Technology, Information and Media
Homepage:holtzbrinck.com
Cyber Premium EstimationGet Supply Chain
Holtzbrinck Risk Score (AI oriented)
Between 750 and 799
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HoltzbrinckTechnology, Information and Media
Updated:
07/03/2026
759/1000
Fair
Baa
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
✖ Insurance prefers TPRM score to calculate premium
Holtzbrinck Global Score (TPRM)
xxxx
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HoltzbrinckTechnology, Information and Media
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Findings

Holtzbrinck
HoltzbrinckFair
Current Score
759Baa (FAIR)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
759Before Incident
JUNE 2026
759Before Incident
MAY 2026
759Before Incident
APRIL 2026
759Before Incident
MARCH 2026
759Before Incident
FEBRUARY 2026
759Before Incident
JANUARY 2026
758Before Incident
DECEMBER 2025
758Before Incident
NOVEMBER 2025
758Before Incident
OCTOBER 2025
758Before Incident
SEPTEMBER 2025
758Before Incident
AUGUST 2025
757Before Incident
JUNE 2023
766Before Incident
Cyber Attack
01 Jun 2023 • Holtzbrinck
Holtzbrinck Publishing Group

Hacking Attack on IT Service Provider for Holtzbrinck Book Publishers

747After Incident
HIGH-19
HOL3610723
A hacking attack has been launched against an IT service provider for Holtzbrinck book publishers. It was already widely known about the hacker attack. All external connections were severed as a safety measure. All systems have been reviewed, and there is no evidence of data leakage—not even from clients or business partners. The publishing company acknowledged that there can occasionally be delivery difficulties and delays for clients as a result of this occurrence.
INCIDENT DETAILS -
TYPE
Hacking Attack
IMPACT
Delivery difficulties and delays for clientsDelivery difficulties and delays for clients
REFERENCES
Blog URLSource URL

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