WPP Scandal

WPP and its agency JWT have hired an external lawyer to conduct an independent investigation following the lawsuit filed by the agency's communications director last week.

On March 10, Erin Johnson filed a lawsuit in New York against JWT and its CEO, Gustavo Martinez, alleging, among other things, that Martinez engaged in numerous "racist and sexist insults." Yesterday, her attorneys filed an amended complaint and requested permission to submit video evidence that would corroborate the allegations against Martinez.

WPP leadership received a message from the parent company declining to hire an external advisor.

Chief Executive Martin Sorrell added:

I only wanted to keep everyone informed about Erin Johnson's case. We've decided to hire an external law firm to conduct an investigation and assess the claims made in the complaint.

Sorrell hires external investigation

Erin Johnson has taken paid leave, and Gustavo Martinez continues in his role as CEO.

On the day the lawsuit was filed, Martin Sorrell sent a note to leadership mentioning an investigation that had been underway since February 25, but stated only that there was no evidence confirming the conduct Johnson alleged.

The day after the allegations surfaced, JWT issued a statement claiming the allegations are false and that Martinez denies all accusations. They added that every serious matter is thoroughly reviewed, and further comments will be made after the case is resolved in court and a judgment is issued.

Who is Bettina Plevan?

The company has chosen to hire Bettina Plevan. She is an employment law expert, former president of the New York City Bar, former member of the Governor's Council, and recently chaired the Standing Committee of the American Bar Association. As a representative of employers in sexual harassment cases, she appears to be a strong choice to defend Gustavo Martinez.

Terms in the article

JWT — JSON Web Token. A signed token containing encoded information about identity and permissions, commonly used in APIs or stateless sessions. It must be properly signed, have a limited validity period, and be protected against leaks.

WPP Scandal — Erin Johnson's Lawsuit Against JWT

Why it matters: Enables identity verification without querying the database on every request — the token carries signed user data and permissions. It is the standard for sessions in APIs and distributed applications.

When to use it: In APIs and stateless authentication; anywhere sessions need to work across multiple services.

Risk of misuse: Improperly used (without expiration, with weak signature) becomes an unrevokeable key — if stolen, it remains valid until the token expires.

JWT — JSON Web Token. Ein signierter Token, der kodierte Informationen über Identität und Berechtigungen enthält, häufig in APIs oder stateless Sitzungen verwendet. Er muss ordnungsgemäß signiert, mit einer begrenzten Gültigkeitsdauer versehen und vor Ausleakung geschützt werden.

Dlaczego to важно: Ermöglicht die Identitätsüberprüfung ohne bei jedem Anfrage Zugriff auf die Datenbank – der Token trägt signierte Benutzer- und Berechtigungsdaten. Standard für Sitzungen in APIs und verteilten Anwendungen.

Kiedy się stosuje: In APIs und stateless Authentifizierung; überall dort, wo eine Sitzung zwischen mehreren Diensten funktionieren soll.

Czym grozi pominięcie: Falsch verwendet (ohne Ablaufzeit, mit schwacher Signatur) wird er zu einem nicht widerrufbaren Schlüssel – ein gestohlener Token bleibt gültig bis zum Ende seiner Lebensdauer.

Summary

Erin Johnson, the communications director, filed a lawsuit in New York on March 10 against JWT and its CEO, Gustavo Martinez, accusing him of racist and sexist insults. Johnson's attorneys filed an amended complaint and seek to include video evidence to support the allegations. JWT maintains the allegations are false, and Martinez denies all claims.

WPP has decided to hire an external law firm to conduct an independent investigation — Martin Sorrell confirmed this in a memo. Bettina Plevan, an employment law expert and former president of the New York City Bar, has been selected to defend Martinez.