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Comparison Overview

HollerHoller
VS
EpsilonEpsilon
Holler

Holler

Avonmore Road, London, undefined, W14 8HQ, GB

Last Update: 19/02/2026

View Profile
Between 750 and 799
http://www.holler.co.uk
750/1000Fair

We're a digital agency, part of the Leo Burnett Group, with offices in London, and soon in Chicago and Silicon Valley. We enable brands to realise their ambitions through a digital entertainment strategy. We create and deliver engaging content and make brands fam...

NAICS:541613
NAICS Definition:Marketing Consulting Services
Employees:39
Subsidiaries:86
12-month incidents
0
Known data breaches
0
Attack type number
0
Epsilon

Epsilon

6021 Connection Drive, Irving, Texas, US, 75039

Last Update: 30/03/2026

View Profile
Between 750 and 799
https://www.epsilon.com
783/1000Fair

Epsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. The world’s leading brands use Epsilon to harmonize consumer engagement across their paid, owned and earned channels, leveraging capabilities that include da...

NAICS:541613
NAICS Definition:Marketing Consulting Services
Employees:10,919
Subsidiaries:6
12-month incidents
0
Known data breaches
2
Attack type number
1

Compliance Ranges Comparison

Based On Specific Ai Models Category
Holler

Holler

-
ISO 27001Not verified
ISO 27001
-
SOC2 Type 1Not verified
SOC2 Type 1
-
SOC2 Type 2Not verified
SOC2 Type 2
-
GDPRNot verified
GDPR
-
PCI DSSNot verified
PCI DSS
-
HIPAANot verified
HIPAA
Epsilon

Epsilon

-
ISO 27001Not verified
ISO 27001
-
SOC2 Type 1Not verified
SOC2 Type 1
-
SOC2 Type 2Not verified
SOC2 Type 2
-
GDPRNot verified
GDPR
-
PCI DSSNot verified
PCI DSS
-
HIPAANot verified
HIPAA

Benchmark & Cyber Underwriting Signals

Incidents vs Advertising Services Industry Avg (This Year)

No incidents recorded for Holler in 2026.

Incidents

Incidents vs Advertising Services Industry Avg (This Year)

No incidents recorded for Epsilon in 2026.

Incidents

Incident History - Holler (X = Date, Y = Severity)

Holler cyber incidents detection timeline including parent company and subsidiaries.

R - Ransomware
C - Cyber Attack
D - Data Breach
V - Vulnerability

Incident History - Epsilon (X = Date, Y = Severity)

Epsilon cyber incidents detection timeline including parent company and subsidiaries.

R - Ransomware
C - Cyber Attack
D - Data Breach
V - Vulnerability

Notable Incidents

Last Cyber / HR Incidents / Global...
Holler

Holler

Incidents
No explicit notable incidents reported.
Epsilon

Epsilon

Incidents
🔒 Incident : Breach
EPS153827123
🔒 Incident : Breach
EPS458072625

FAQ

Between Holler company and Epsilon company, which one has the best AI Cybersecurity Score ?
Between Holler company and Epsilon company, which one has experienced more cyber incidents in the past ?
Between Holler company and Epsilon company, which one has experienced more cyber incidents this year ?
Between Holler company and Epsilon company, which one has experienced at least one ransomware attack ?
Between Holler company and Epsilon company, which one has experienced at least one data breach ?
Between Holler company and Epsilon company, which one has experienced at least one targeted cyberattack ?
Between Holler company and Epsilon company, which one has experienced at least one vulnerability ?
Between Holler company and Epsilon company, which one holds the most compliance certifications ?
Between Holler company and Epsilon company, which one holds the fewest compliance certifications ?
Between Holler company and Epsilon company, which one has the most subsidiaries ?
Between Holler company and Epsilon company, which one has the largest number of employees ?
Between Holler and Epsilon, which company holds both SOC 2 Type 1 certifications ?
Between Holler and Epsilon, which company holds both SOC 2 Type 2 certifications ?
Which company is ISO 27001 certified - Holler or Epsilon ?
Which company is PCI DSS compliant - Holler or Epsilon ?
Between Holler and Epsilon, which company complies with HIPAA regulations for healthcare data ?
Between Holler and Epsilon, which company complies with GDPR requirements ?

Latest Global CVEs

CVE-2026-19756
SUMMARY

A vulnerability has been found in Dromara lamp-cloud up to 5.10.0. This affects an unknown part of the file DefGenProjectController.java of the component Code Generator. Such manipulation of the argument outputDir/parent/projectPrefix leads to path traversal. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED
Date2026-08-13
UPDATED
Date2026-08-13
RISK INFORMATION (Score: 6.3)
CVSS2
Base Score: 6.5
Complexity: LOW
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS3
Base Score: 6.3
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS4
Base Score: 2.1
Complexity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
IMPACT SCORE
3.4
EXPLOITABILITY
2.8
CVE-2026-19753
SUMMARY

A vulnerability was detected in Model Context Protocol mcp-rdf-explorer 1.0.0. Affected is the function explore_url of the file src/mcp-rdf-explorer/server.py of the component MCP Server. Performing a manipulation of the argument url results in server-side request forgery. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED
Date2026-08-13
UPDATED
Date2026-08-13
RISK INFORMATION (Score: 7.3)
CVSS2
Base Score: 7.5
Complexity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Base Score: 7.3
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS4
Base Score: 5.5
Complexity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
IMPACT SCORE
3.4
EXPLOITABILITY
3.9
CVE-2026-73843
SUMMARY

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.2 and 1.1.2, internal/cluster-gateway/server.go served caller-facing management APIs on the externally reachable agent listener without authentication, allowing network-reachable attackers to invoke /api/proxy/ and /api/exec/ operations, proxy the data-plane Kubernetes API, and execute commands in workload pods in multi-cluster deployments. This issue is fixed in versions 1.0.2 and 1.1.2.

PUBLISHED
Date2026-08-13
UPDATED
Date2026-08-13
RISK INFORMATION (Score: 9.6)
CVSS3
Base Score: 9.6
Complexity: LOW
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
IMPACT SCORE
6
EXPLOITABILITY
2.8
CVE-2026-73842
SUMMARY

OpenChoreo is a complete, open-source developer platform for Kubernetes. Prior to 1.0.3, 1.1.3, and 1.2.0-rc.2, internal/cluster-gateway/server.go exposed /api/proxy/, /api/exec/, and /api/wirelogs/ on an internal listener without requiring a client certificate or token, allowing any network-reachable caller to read tenant Kubernetes Secrets, mutate workloads, and execute commands across connected data planes. This issue is fixed in versions 1.0.3, 1.1.3, and 1.2.0-rc.2.

PUBLISHED
Date2026-08-13
UPDATED
Date2026-08-13
RISK INFORMATION (Score: 9)
CVSS3
Base Score: 9.0
Complexity: LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
IMPACT SCORE
6
EXPLOITABILITY
2.3
CVE-2026-73841
SUMMARY

OpenChoreo is a complete, open-source developer platform for Kubernetes. From 1.2.0-rc.1 until 1.2.0, internal/openchoreo-api/api/handlers/exec.go and internal/openchoreo-api/api/handlers/wirelogs.go authorize component:exec and wirelogs:view using the caller-supplied project query parameter instead of comp.Spec.Owner.ProjectName, allowing a user with a project-scoped grant to execute commands in and read wirelogs from components owned by other projects in the same namespace. This vulnerability is fixed in 1.2.0.

PUBLISHED
Date2026-08-13
UPDATED
Date2026-08-13
RISK INFORMATION (Score: 8.8)
CVSS3
Base Score: 8.8
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
IMPACT SCORE
5.9
EXPLOITABILITY
2.8