
Ackman vs Sard Verbinnen: The 2015 Valeant PR Dispute
Bill Ackman told investors in October 2015 that Valeant underinvested in communications and criticized its PR firm, Sard Verbinnen. Here is what happened.
Crisis PR articles, case studies and research.
Browse crisis PR articles, case studies and research on crisis response, issues management and reputation recovery. For definitions and practical frameworks, start with the Crisis PR & Crisis Communications guide linked below.


Bill Ackman told investors in October 2015 that Valeant underinvested in communications and criticized its PR firm, Sard Verbinnen. Here is what happened.






Millie Moon diaper lawsuit alleges leaks and skin reactions. See what the filing says, how Zuru responded and what parents expect from a premium baby brand.

Nissan recall of 539,864 vehicles in March 2010 covered brake pedal pins and fuel gauges. See the numbers, the wording used and the communications lessons.

Page Six reports Dianna Russini hired crisis publicist Melissa Nathan before a media comeback. The sequence, what The Athletic found, and the risks of the hire.

Kahf deleted a football meme and apologized after Malaysians called for a boycott. See the timeline, celebrity reactions and what regional brands should do.

GIVA withdrew its Kriti Sanon Raksha Bandhan ad on Aug. 26, 2026. Six weeks later Sanon was still answering for it. A timeline, what the statement left out, and what brands and talent should agree first.

True Food Kitchen filed Chapter 11 on Oct. 4, 2026, closing 12 restaurants and keeping 34 open. The facts, the company's explanation, its statement on Oprah Winfrey's role, and what brands should prepare before a filing.

Ford public relations from the Pinto scandal and Firestone tire crisis to the Mulally bailout refusal, with sourced lessons for crisis and leadership communications.

Converse removed a Chuck 70 X image 15 days after posting it. A timeline of the apology, what it left unexplained, and four checks brands can run before posting campaign images.

How a planted fingertip in a bowl of chili cost Wendy's 2.5 million dollars in sales, and how the chain's calm, fact-first response became a textbook false claim defense.
Start here: Crisis PR & Crisis Communications: the complete guide. Read the guide for definitions, preparation, response and recovery frameworks, then explore the latest articles and case studies in this category.
This category brings together Everything-PR articles, case studies and research on crisis response, product recalls, data breaches, executive misconduct, litigation-related communications and reputation recovery.
Consumer brand crisis communications: Bud Light, Stanley and Tarte · Pepsi Kendall Jenner ad case study · Corporate Crisis Citation Share Index
Cybersecurity · Reputation management · Litigation PR · Public affairs · Investor relations