Comparison Overview

Bloomsbury Publishing Plc

VS

Head of Zeus

Bloomsbury Publishing Plc

50 Bedford Square, London, WC1B 3DP, GB
Last Update: 2025-11-21
Between 750 and 799

Bloomsbury Publishing is a leading independent publishing house with authors who have won the Nobel, Pulitzer and Booker Prizes, and is the originating publisher and custodian of the Harry Potter series. Founded in London in 1986, we now have offices in London, New York, Santa Barbara, New Delhi, Oxford and Sydney. Bloomsbury is the only publishing company to combine general fiction and non-fiction publishing with academic, professional and educational publishing. We bring together the best talent by combining our passionate colleagues and bestselling authors. Through our commitment to quality, growth, digital publishing and international strategy, we’ve become one of the world’s leading independent publishers. Our purpose is to inform, educate, entertain and inspire readers of all ages, championing a life-long love of reading and learning. We aim to help build a reading culture that benefits wider society. Bloomsbury’s success is due to the belief, commitment and hard work of our talented colleagues. We have a positive and vibrant culture where everyone has a sense of belonging and understands their value. Colleagues are supported to reach their highest potential, with wellbeing at the forefront of everything we do. Initiatives including cost of living support, family policies and healthcare enable colleagues to perform at their best at work. We have a particular focus on Diversity, Equity and Inclusion, as well as community outreach and sustainability. Find out more about us at www.bloomsbury.com

NAICS: 511
NAICS Definition: Publishing Industries (except Internet)
Employees: 1,163
Subsidiaries: 0
12-month incidents
0
Known data breaches
0
Attack type number
0

Head of Zeus

Clerkenwell House,, London, undefined, EC1R 0HT, GB
Last Update: 2025-11-22
Between 750 and 799

Head of Zeus is a young and vibrant publishing house dedicated to new authors, great storytelling and fabulous ideas. We opened for business on 3 January 2012 and we published our first books in July 2012. Our list is a mix of general and literary fiction, genre fiction and non fiction. Find out what we publish, who we are and why we are called Head of Zeus at our website, headofzeus.com. Or Follow us @HoZ_Books.

NAICS: 511
NAICS Definition: Publishing Industries (except Internet)
Employees: 74
Subsidiaries: 0
12-month incidents
0
Known data breaches
0
Attack type number
0

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/bloomsbury-publishing-plc.jpeg
Bloomsbury Publishing Plc
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
https://images.rankiteo.com/companyimages/head-of-zeus.jpeg
Head of Zeus
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
Compliance Summary
Bloomsbury Publishing Plc
100%
Compliance Rate
0/4 Standards Verified
Head of Zeus
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Book and Periodical Publishing Industry Average (This Year)

No incidents recorded for Bloomsbury Publishing Plc in 2025.

Incidents vs Book and Periodical Publishing Industry Average (This Year)

No incidents recorded for Head of Zeus in 2025.

Incident History — Bloomsbury Publishing Plc (X = Date, Y = Severity)

Bloomsbury Publishing Plc cyber incidents detection timeline including parent company and subsidiaries

Incident History — Head of Zeus (X = Date, Y = Severity)

Head of Zeus cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/bloomsbury-publishing-plc.jpeg
Bloomsbury Publishing Plc
Incidents

No Incident

https://images.rankiteo.com/companyimages/head-of-zeus.jpeg
Head of Zeus
Incidents

No Incident

FAQ

Bloomsbury Publishing Plc company demonstrates a stronger AI Cybersecurity Score compared to Head of Zeus company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Historically, Head of Zeus company has disclosed a higher number of cyber incidents compared to Bloomsbury Publishing Plc company.

In the current year, Head of Zeus company and Bloomsbury Publishing Plc company have not reported any cyber incidents.

Neither Head of Zeus company nor Bloomsbury Publishing Plc company has reported experiencing a ransomware attack publicly.

Neither Head of Zeus company nor Bloomsbury Publishing Plc company has reported experiencing a data breach publicly.

Neither Head of Zeus company nor Bloomsbury Publishing Plc company has reported experiencing targeted cyberattacks publicly.

Neither Bloomsbury Publishing Plc company nor Head of Zeus company has reported experiencing or disclosing vulnerabilities publicly.

Neither Bloomsbury Publishing Plc nor Head of Zeus holds any compliance certifications.

Neither company holds any compliance certifications.

Neither Bloomsbury Publishing Plc company nor Head of Zeus company has publicly disclosed detailed information about the number of their subsidiaries.

Bloomsbury Publishing Plc company employs more people globally than Head of Zeus company, reflecting its scale as a Book and Periodical Publishing.

Neither Bloomsbury Publishing Plc nor Head of Zeus holds SOC 2 Type 1 certification.

Neither Bloomsbury Publishing Plc nor Head of Zeus holds SOC 2 Type 2 certification.

Neither Bloomsbury Publishing Plc nor Head of Zeus holds ISO 27001 certification.

Neither Bloomsbury Publishing Plc nor Head of Zeus holds PCI DSS certification.

Neither Bloomsbury Publishing Plc nor Head of Zeus holds HIPAA certification.

Neither Bloomsbury Publishing Plc nor Head of Zeus holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

ThingsBoard in versions prior to v4.2.1 allows an authenticated user to upload malicious SVG images via the "Image Gallery", leading to a Stored Cross-Site Scripting (XSS) vulnerability. The exploit can be triggered when any user accesses the public API endpoint of the malicious SVG images, or if the malicious images are embedded in an `iframe` element, during a widget creation, deployed to any page of the platform (e.g., dashboards), and accessed during normal operations. The vulnerability resides in the `ImageController`, which fails to restrict the execution of JavaScript code when an image is loaded by the user's browser. This vulnerability can lead to the execution of malicious code in the context of other users' sessions, potentially compromising their accounts and allowing unauthorized actions.

Risk Information
cvss4
Base: 6.2
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description

Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account takeover via a specially crafted email address used when switching authentication methods and sending a request to the /users/login/sso/code-exchange endpoint. The vulnerability requires ExperimentalEnableAuthenticationTransfer to be enabled (default: enabled) and RequireEmailVerification to be disabled (default: disabled).

Risk Information
cvss3
Base: 9.9
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Description

Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to sanitize team email addresses to be visible only to Team Admins, which allows any authenticated user to view team email addresses via the GET /api/v4/channels/{channel_id}/common_teams endpoint

Risk Information
cvss3
Base: 4.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Description

Exposure of email service credentials to users without administrative rights in Devolutions Server.This issue affects Devolutions Server: before 2025.2.21, before 2025.3.9.

Description

Exposure of credentials in unintended requests in Devolutions Server.This issue affects Server: through 2025.2.20, through 2025.3.8.