One of the most significantly litigated areas of privacy law is biometric privacy. Tools that collect biometric information and biometric identifiers—including facial geometries, fingerprint scans, and voiceprints—are increasingly common for businesses across industries. Unfortunately, such tools in recent years have become focuses of the plaintiffs’ bar.

2025 saw continued developments in litigation under Illinois’ Biometric Information Privacy Act (BIPA), one of the first and most important biometric privacy laws in the country, as well as other, lesser-litigated biometric laws. Squire Patton Boggs’ globally ranked “Elite” Data Disputes team is well experienced defending businesses and their data practices, including in the realm of biometric privacy, in both litigation and arbitration, including mass arbitration. See also https://www. privacyworld.blog/2025/12/2025-mass-arbitration-year-in-review/

In this article, informed by our practical experience litigating and arbitrating biometric cases, we: (I) provide a brief primer on BIPA and then take a look at some highlights of the 2025 biometric privacy litigation space, including (II) class action and mass arbitration activity under BIPA, (III) key questions regarding defenses to BIPA claims on appeal at the Seventh Circuit, (IV) a decision contrasting BIPA with New York City’s biometric regime, (V) developments under other biometric laws enforced by attorneys general, and (VI) the intersection of AI and biometric privacy laws.Continue Reading 2025 Year-In-Review: Biometric Privacy Litigation