Vassi Iliadis | Los Angeles | Hogan Lovells

Vassi Iliadis

Partner Litigation, Arbitration, and Employment

Iliadis Vassi

Vassi Iliadis
Iliadis Vassi
  • Overview
  • Experience
  • Credentials
  • Insights and events

Vassi Iliadis is one of the firm's lead California litigators when complex matters of data privacy and protection result in class action litigation and regulatory enforcement.

A dynamic and pragmatic problem solver, Vassi has significant experience litigating large-scale consumer class actions and multijurisdictional suits from inception through resolution arising out of some of the most highly publicized data breaches and state-sponsored cyberattacks on record.  

In addition to litigating these matters, Vassi guides organizations in the technology, financial, healthcare, and pharmaceutical industries in coordinating incident response, managing forensic investigations (including advising on issues of attorney-client privilege), responding to government inquiries and investigations, and leading highly sensitive internal investigations when an unexpected crisis arises impacting an organization’s data privacy and cybersecurity.  

Vassi also has deep experience litigating a broad range of commercial disputes, including health care contracts, insurance coverage issues, product defect issues, and the enforcement of arbitration agreements. 

As a first generation college graduate and diverse woman, Vassi is passionate about helping the firm deliver on its commitments to diversity and inclusion.  Vassi was selected to participate as the firm’s Diversity Pathfinder in the Leadership Counsel on Legal Diversity, an organization of corporate chief legal officers and law firm managing partners dedicated to creating a truly diverse legal profession.  

During law school, Vassi was actively engaged in trial advocacy and served as a director of the Berkeley Law mock trial program. She was a national semi-finalist in the ABA labor and employment trial competition and regional champion of the Texas Young Lawyer Association's national trial competition. Vassi served as a law clerk in the criminal division of the California Department of Justice, Office of the Attorney General.

Representative experience

Representing global technology platform and national insurer in data breach class actions 

Lead California counsel in the Uber Data Breach MDL, successfully winning early motions to dismiss and motions to compel arbitration of every one of the MDL's underlying complaints.

Representing two global technology companies in FTC privacy-related investigations

Representing insurance company in coordinated class actions and individual suits alleging purported business income losses arising out of the Covid-19 pandemic 

Represented large health insurance company in high-profile data breach multidistrict litigation (100+ consolidated class actions) and in the related regulatory inquiries.

Supported breach response and managed internal fact investigations for clients following business email compromises, ransomware attacks, and other cybersecurity incidents.

Won summary judgment for large health insurer in multimillion-dollar payment dispute against hospital involving ERISA claims.

Obtained favorable outcome for products manufacturer in putative class actions in multijurisdictional federal district courts alleging product defects and violations of consumer protection statutes.

Managed internal investigation for Fortune 500 global company involving potential Foreign Corrupt Practices violations.


  • J.D., University of California, Berkeley School of Law, 2013
  • B.A., University of Southern California, magna cum laude, 2010
Bar admissions and qualifications
  • California
Court admissions
  • U.S. Court of Appeals, Ninth Circuit
  • U.S. District Court, Central District of California
  • U.S. District Court, Northern District of California
  • U.S. District Court, Southern District of California