What is the official website of McCann ?

The official website of McCann is https://mccann.com/.

What is McCann's cybersecurity risk score?

McCann has an AI-generated cybersecurity risk score of 781 out of 1000, indicating a Fair security posture according to Rankiteo's assessment.

How many security incidents has McCann experienced?

According to Rankiteo, McCann currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.

Has McCann been affected by any supply chain cyber incidents ?

According to Rankiteo, McCann has not been affected by any supply chain cyber incidents, and no incident IDs are currently listed for the organization.

Does McCann have SOC 2 Type 1 certification ?

According to Rankiteo, McCann is not certified under SOC 2 Type 1.

Does McCann have SOC 2 Type 2 certification ?

According to Rankiteo, McCann does not hold a SOC 2 Type 2 certification.

Does McCann comply with GDPR ?

According to Rankiteo, McCann is not listed as GDPR compliant.

Does McCann have PCI DSS certification ?

According to Rankiteo, McCann does not currently maintain PCI DSS compliance.

Does McCann comply with HIPAA ?

According to Rankiteo, McCann is not compliant with HIPAA regulations.

Does McCann have ISO 27001 certification ?

According to Rankiteo,McCann is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.

Which industry does McCann operate in ?

McCann operates primarily in the Advertising Services industry.

How many employees does McCann have ?

McCann employs approximately 6,835 people worldwide.

Does McCann own any subsidiaries ?

McCann presently has no subsidiaries across any sectors.

How many LinkedIn followers does McCann have ?

McCann's official LinkedIn profile has approximately 615,168 followers.

What is the NAICS classification code for McCann ?

McCann is classified under the NAICS code 541613, which corresponds to Marketing Consulting Services.

Does McCann have a Crunchbase profile ?

No, McCann does not have a profile on Crunchbase.

Does McCann have a LinkedIn profile ?

Yes, McCann maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/mccann.

How many cybersecurity incidents has McCann experienced ?

As of August 2, 2026, Rankiteo reports that McCann has experienced 1 cybersecurity incidents.

How many peer or competitor companies does McCann have ?

McCann has an estimated 33,371 peer or competitor companies worldwide.

What types of cybersecurity incidents has McCann faced ?

Incident Types: The types of cybersecurity incidents that have occurred include Breach.

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McCann

Boost Score +25 with badge (5 left)

781

/1000

Fair

806

/1000

Good

McCann Vendor Cyber Rating & Cyber Score

mccann.com

Add Your Compliance Badge

We build brands that move people and markets through the radical creativity of Truth Well Told™. We don’t make campaigns, we build brands. We don’t follow trends, we uncover enduring human truths. That has been the promise of Truth Well Told since our founding in 1912 – a promise we renew every day as an iconic brand that builds the world’s most iconic brands through finding the truth and telling it well.  Truth Well Told unites our 10,000+ people across 100+ countries, as does our commitment to Conscious Inclusion, which upholds the highest standards of bravery, integrity and generosity.   Named one of the World's Most Innovative Companies by Fast Company in 2025 and 2024, McCann was the most awarded agency at Cannes Lions 2023 and

McCann A.I CyberSecurity Scoring

Scoring History

McCann

McCann CyberSecurity News & History

Past Incidents

Attack Types

Entity

Type

Severity

Impact

Seen

Blog Details

Supply Chain Source

Incident Details

View

McCANN New York

Breach

2/2026

MCC1772132592

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A.I.

McCann Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Actual

Prediction

Incident Predictions locked

Access Monitoring Plan

A.I Risk Score Likelihood 3 - 6 - 9 months

Actual

Prediction A

Prediction B

Prediction C

Prediction D

A.I. Risk Score Predictions locked

Access Monitoring Plan

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Underwriter Stats for McCann

Incidents vs Advertising Services Industry Avg (This Year)

No incidents recorded for McCann in 2026.

Incidents vs All-Companies Average (This Year)

No incidents recorded for McCann in 2026.

Incident Types McCann vs Advertising Services Industry Avg (This Year)

No incidents recorded for McCann in 2026.

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

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SUBSIDIARY

McCann Subsidiaries

McCann

Advertising Services

Website: https://mccann.com/

Company Size: 10,000+ employees

McCann WorldgroupAdvertising Services

MRMAdvertising Services

McCann New YorkAdvertising Services

Craft WorldwideAdvertising Services

McCann LondonAdvertising Services

MRM SpainAdvertising Services

Momentum WorldwideAdvertising Services

FitzcoAdvertising Services

MRM BrasilAdvertising Services

Casanova//McCannAdvertising Services

S2DOAdvertising Services

Interpublic Group (IPG)Advertising Services

R/GAAdvertising Services

HugeBusiness Consulting and Services

FCB GlobalAdvertising Services

MullenLowe GlobalAdvertising Services

The Martin AgencyAdvertising Services

Hill HollidayAdvertising Services

Carmichael LynchAdvertising Services

Campbell EwaldAdvertising Services

IW Group Inc.Advertising Services

EP+CoAdvertising Services

TierneyAdvertising Services

Carmichael Lynch RelatePublic Relations and Communications Services

Marketing Intelligence Engine (MIE)Advertising Services

Deutsch LAAdvertising Services

DeutschAdvertising Services

DNYAdvertising Services

AcxiomAdvertising Services

Acxiom China （安客诚）IT Services and IT Consulting

gothamAdvertising Services

Mccann Worldgroup Philippines, Inc.Advertising Services

215 McCannAdvertising Services

McCann DetroitAdvertising Services

McCann Worldgroup SingaporeAdvertising Services

MRM UKAdvertising Services

McCann AustraliaAdvertising Services

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cb publicisgroupe.com

Founded in 1926 by Marcel Bleustein-Blanchet, today Publicis Groupe is the largest communications group in the world and a leader in marketing, communication, and digital business transformation, led by Arthur Sadoun, the third CEO in its history. Publicis Groupe is positioned at every step of the value chain, from consulting to execution, combining marketing transformation and digital business transformation. Publicis Groupe is a privileged partner in its clients’ transformation to enhance personalisation at scale. The Groupe relies on ten expertise concentrated within four main activities: Communication, Media, Data and Technology. Through a unified and fluid organisation, its clients have a facilitated access to all its expertise in every market. Present in over 100 countries, Publicis Groupe employs around 108,000 professionals. Website: www.publicisgroupe.com X: @PublicisGroupe Instagram: @publicisgroupe YouTube: http://www.youtube.com/publicisgroupe Facebook: http://www.facebook.com/publicisgroupe

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Clear Channel Europe is a division of leading global Out of Home media company, Clear Channel Outdoor Holdings, Inc. (NYSE: CCO). The Clear Channel Europe portfolio spans 14 markets with 260,000 advertising panels. Clear Channel Europe has 2,600 dedicated employees. Our Mission is To Create the future of media. Transforming our estate, to the benefit of all our stakeholders, through data-driven innovations and infrastructure. Our Purpose is to provide both A Platform for Brands & A Platform for Good. Delivering advertisers’ media objectives whilst having a positive impact on the world around us.

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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 data, identity resolution, customer data platforms, clean rooms, digital media, retail media, site personalization, direct mail, loyalty, email marketing and measurement. By applying artificial intelligence against privacy-centric consumer recognition–embedded in data-enriched analytic, marketing and media solutions–Epsilon allows marketers to bridge the divide between marketing and advertising technology, engaging consumers with 1 View, 1 Vision and 1 Voice. 1 View of their universe of potential buyers. 1 Vision for engaging each individual. And 1 Voice to harmonize engagement across paid, owned and earned channels. Follow us on Instagram: @epsilonmarketing

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$TBWA\Worldwide$

TBWA\Worldwide

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TBWA is The Disruption Company®. We are a Collective of creative minds with an unlimited creative canvas. We create brand platforms that defy convention and compete with culture. Thanks to our trademarked Disruption® methodology, we build the world’s strongest brands. Brands that own an unfair share of the future. Named one of the World's Most Innovative Companies by Fast Company in 2025, 2023, 2022, 2021, 2020 and 2019, TBWA is also Adweek's 2024, 2022, 2021 and 2018 Global Agency of the Year and AdAge’s A-List 2022 Network of the Year. Our Collective has 11,000+ creative minds in over 40 countries, and also includes brands such as Auditoire, Digital Arts Network (DAN), eg+ worldwide, GMR, TBWA\Media Arts Lab, TBWA\Health Collective and TRO. Global clients include adidas, Apple, Gatorade, Henkel, Hilton Hotels, McDonald's, Nissan and Singapore Airlines. TBWA is part of Omnicom Group (NYSE: OMC).

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NEWS

McCann CyberSecurity News

Latest updates, reports, and threat intel affecting the global network.

February 27, 2026 08:00 AM

Oklahoma State University names McLagan as chief information security officer

Oklahoma State University has named Marjorie McLagan as chief information security officer, where she will provide strategic leadership for...

Read Article

February 25, 2026 08:00 AM

SIA names Erica McCann as chair of SIA Government Relations Committee

SILVER SPRING, Md.—The Security Industry Association (SIA) has named Erica McCann - head of devices, advertising and cybersecurity public...

Read Article

February 05, 2026 10:31 AM

Viatel names Damien McCann as communications services MD

Viatel Technology Group has promoted Damien McCann to MD of its communications services arm. A company vet with nearly 20 years of experience at the...

Read Article

February 02, 2026 08:00 AM

Finance and cybersecurity execs aren’t fully aligned on business priorities

CFO teams are less likely to say they're fully in sync with their security counterparts, according to a recent vendor survey.

Read Article

January 06, 2026 08:00 AM

The UC Cybersecurity Landscape in 2026

Leslie Nielsen offers expert insights into how businesses can stay ahead of increasingly sophisticated threats targeting platforms.

Read Article

December 16, 2025 08:00 AM

Ceto Names Michael McCann Managing Director of NexBridge™ | Performance Optimization

Ceto announces Michael McCann as Managing Director of NexBridge™ | Performance Optimization, marking a strategic step forward in the...

Read Article

December 05, 2025 08:00 AM

AI fraud-detection tools require human oversight: report

Finance leaders worry about the potential to misuse AI internally, given the prevalence of external fraud attacks.

Read Article

December 02, 2025 08:00 AM

Whitmer endorses state Sen. Sean McCann in 4th Congressional District race

Gov. Gretchen Whitmer has endorsed state Sen. Sean McCann, a Kalamazoo Democrat, in the race for Michigan's 4th Congressional District,...

Read Article

October 22, 2025 07:00 AM

Exposure to cyberattacks plagues asset management industry

Investment management executives fear loss of clients, disrupted operations and financial fraud, according to a survey by cybersecurity firm...

Read Article

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CVE

Latest

Global CVEs (Not Company-Specific)

CVE-2026-18556

SUMMARY

Authentication bypass using an alternate path or channel vulnerability in N-able N-central allows Authentication Bypass. This issue affects N-central: through 2026.1.

Published

Date2026-08-01

Updated

Date2026-08-01

RISK INFORMATION (Score: )

cvss4

Base Score: 8.2

Complexity: HIGH

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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

Impact Score

Exploitability

REFERENCES

https://uptime.n-able.com/

CVE-2026-55735

SUMMARY

Improper Verification of Cryptographic Signature in ueberauth guardian allows an unauthenticated attacker to revoke a victim's session with a forged token. Guardian.revoke/3 in lib/guardian.ex decodes the supplied token with peek/1, which performs no signature verification (it only base64-decodes the JWT header and payload). The resulting unverified claims are forwarded directly to the configured token module's revoke callback and the implementation's on_revoke callback, a state-mutating sink. The sibling operations refresh/2 and exchange/4 both call decode_and_verify first, so the signature is checked before anything acts on the claims; revoke/3 is the only state-mutating path that acts on claims without verifying the signature. An attacker who knows or guesses a victim's identifying claim values (jti, sub) can forge a JWT carrying those claims, sign it with an arbitrary key, and submit it to any endpoint that funnels a caller-supplied token into Guardian.revoke/3 (the standard logout / session-revocation pattern). When the token module mutates state keyed by the claims (whitelist deletion or blacklist insertion, for example a GuardianDb-style store), the victim's legitimate session is evicted. This is an unauthenticated session-revocation denial of service; the attacker never needs the signing secret. This issue affects guardian: from 1.0.0 before 2.4.1.

Published

Date2026-08-01

Updated

Date2026-08-01

RISK INFORMATION (Score: )

cvss4

Base Score: 8.2

Complexity: LOW

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/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

Impact Score

Exploitability

REFERENCES

CVE-2026-55734

SUMMARY

Allocation of Resources Without Limits or Throttling vulnerability in ueberauth guardian (Guardian.Permissions module) allows a denial of service via BEAM atom-table exhaustion. This vulnerability is associated with program file lib/guardian/permissions.ex and program routines 'Elixir.Guardian.Permissions':encode_permissions!/1, 'Elixir.Guardian.Permissions':encode_permissions_into_claims!/2, 'Elixir.Guardian.Permissions':do_encode_permissions!/2. The Guardian.Permissions mixin installs a public encode_permissions!/1 function on every module that does use Guardian.Permissions. For each key of the supplied map, encode_permissions!/1 calls String.to_atom(to_string(k)) before any validation runs. The integer-value clause of do_encode_permissions!/2 then short-circuits straight to encoding without validating the key against the configured permission set, so a key with an integer value is interned as a fresh atom with no exception raised. Atoms are never garbage collected and the BEAM atom table is a fixed-size resource (default roughly 1,048,576 entries), so each unique attacker-chosen key permanently consumes one slot. An attacker who can influence a permission map that reaches encode_permissions!/1 (for example a permissions map read from a request body and passed into token issuance via encode_permissions_into_claims!/2) can mint an unbounded number of atoms and exhaust the atom table, crashing the entire BEAM node and every service running on it. The sibling decode_permissions/1 is not affected because it skips keys absent from the configured permission set. This issue affects guardian: from 2.0.0 before 2.4.1.

Published

Date2026-08-01

Updated

Date2026-08-01

RISK INFORMATION (Score: )

cvss4

Base Score: 6.9

Complexity: LOW

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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

Impact Score

Exploitability

REFERENCES

CVE-2026-55733

SUMMARY

Allocation of Resources Without Limits or Throttling in ueberauth guardian allows denial of service via unbounded atom creation from attacker-controlled binary input. Guardian.Permissions.AtomEncoding encodes permission scopes by passing arbitrary binaries to String.to_atom/1. When encode/3 in lib/guardian/permissions/atom_encoding.ex is called with a list, each binary entry is handled by the encode_value/3 binary clause, which calls String.to_atom(value) with no allow-list check. The perm_set argument (the application's small, finite set of legitimate permission names) is discarded, so any external string flows straight into atom creation. This encoder is selected with use Guardian.Permissions, encoding: Guardian.Permissions.AtomEncoding and reached through the imported encode/3 entry point. String.to_atom/1 creates a brand-new atom for every previously unseen binary, atoms are never garbage collected, and the BEAM atom table is fixed at roughly 1,048,576 entries by default. An application that funnels attacker-influenced permission scopes (from a request body, a JWT claim, or other external input) into encode/3 therefore mints one permanent atom per distinct value. A modest stream of varied, unauthenticated input permanently consumes the atom table and crashes the BEAM node with system_limit, taking down every application running on it. The default encoder is Guardian.Permissions.BitwiseEncoding, which is not affected. This issue affects guardian: from 2.0.0 before 2.4.1.

Published

Date2026-08-01

Updated

Date2026-08-01

RISK INFORMATION (Score: )

cvss4

Base Score: 6.9

Complexity: LOW

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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

Impact Score

Exploitability

REFERENCES

CVE-2026-54894

SUMMARY

Allocation of Resources Without Limits or Throttling in ueberauth guardian allows denial of service via unbounded atom creation from attacker-influenced binary input. Guardian.Plug.Keys derives connection and session namespace keys by passing arbitrary binaries to String.to_atom/1. base_key/1 in lib/guardian/plug/keys.ex converts any binary into the atom :"guardian_<input>", and the derived helpers claims_key/1, resource_key/1, and token_key/1 create a second atom on top of that. key_from_other/1 likewise converts a regex-captured binary through String.to_atom/1. The public specs advertise String.t() as a valid argument, so passing a string is documented usage, and higher-level entry points such as Guardian.Plug.current_token(conn, key: key) thread the caller-supplied key straight into these functions. String.to_atom/1 creates a brand-new atom for every previously unseen binary, atoms are never garbage collected, and the BEAM atom table is fixed at roughly 1,048,576 entries by default. An application that routes attacker-influenced data (a tenant identifier, header, or other request input) into a Guardian key therefore mints one permanent atom per distinct value. A modest stream of varied, unauthenticated input permanently consumes the atom table and crashes the BEAM node, taking down every application running on it. This issue affects guardian: from 0.1.0 before 2.4.1.

Published

Date2026-08-01

Updated

Date2026-08-01

RISK INFORMATION (Score: )

cvss4

Base Score: 6.9

Complexity: LOW

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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

Impact Score

Exploitability

REFERENCES

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