xbiz world
xbiz premiere

Craigslist Sues Maker of Auto-Posting Software in Federal Court

SAN FRANCISCO — Online classifieds provider Craigslist is suing a New York man and 25 unnamed parties, claiming they made and sold auto-posting software that violates copyright and is both fraudulent and illegal.

In the claim filed at U.S. District Court in San Francisco Nov. 5, the San Francisco company seeks a preliminary and permanent injunction against Zheng Peng and his company, PostingExpert.org.

The lawsuit also seeks unspecified damages to be awarded via jury trial and the return of all profits obtained by Peng and the unnamed individuals.

The auto-posting software “undermines Craigslist’s systems, organization and operation,” according to the lawsuit. It enables users to repetitiously post ads across the website’s many categories and geographical areas, and in the process the software circumvents “craigslist security measures,” the lawsuit stated.

Craigslist’s attorneys, Brian Hennessy and Elizabeth L. McDougall of Perkins Coie LLP, ground the charges against Peng in both federal and state laws regulating businesses. They run from copyright infringement and violation of the Digital Millenium Copyright Act to breach of contact, violation of California penal code, fraud and intentional interference with contractual relations.

Related:  

Copyright © 2026 Adnet Media. All Rights Reserved. XBIZ is a trademark of Adnet Media.
Reproduction in whole or in part in any form or medium without express written permission is prohibited.

More News

Romantix-Fargo Zoning Dispute Heads Back to District Court

A federal appeals court on Thursday ruled that zoning officials in Fargo, North Dakota, acted in an “arbitrary and capricious” manner when they prevented sex toy retailer Romantix from opening a planned retail store in that city.

Appeals Court Upholds Section 230 Immunity in XVideos Case

The U.S. Court of Appeals for the 9th Circuit has upheld a lower court’s ruling that Section 230 protects WebGroup Czech Republic from liability in a case involving user-uploaded CSAM on its tube sites.

JustFor.fans Wins Trademark Infringement Case Against Fraudulent Domain

The World Intellectual Property Organization (WIPO) has ruled in favor of JustFor.fans in a case against a website using an infringing domain.

Aylo Moves to Settle Two 'Children of Pornhub' Class-Action Lawsuits

Aylo has agreed to terms for a settlement with the plaintiffs in two long-running class actions over allegations that former Pornhub parent company MindGeek knowingly allowed and profited from CSAM on its sites.

FSC Hails Members, Allies in SCREEN Act Victory

The Free Speech Coalition (FSC) released a statement today praising its members and allies after a successful lobbying effort to prevent the SCREEN Act, a nationwide age verification bill, from advancing out of the Commerce Committee for a full vote on the Senate floor.

SCREEN Act Stalls in Senate Committee Over Technicality

The Senate Commerce Committee on Wednesday voted to approve the SCREEN Act, which would mandate nationwide site-based age verification of users seeking to access adult content online, but a procedural issue blocked the bill from advancing to the full Senate.

Essence Protection Introduces Insurance Coverage for Creators

Essence Protection has introduced liability insurance for creators.

SCREEN Act Back in Play: Federal AV Bill Faces Senate Hearing

The U.S. Senate Committee on Commerce, Science, and Transportation has slated a markup session this week for the SCREEN Act, which would mandate site-based age verification of users accessing adult content online on a national level.

Arcom Targets 31 Adult Sites Over Age Verification

French media regulator Arcom on Wednesday announced that it is taking action against 31 adult websites that the agency says have failed to implement age verification as required under France’s Security and Regulation of the Digital Space (SREN) law.

New 'PROTECT Act' Would Make North Carolina Rules for Adult Sites Federal Law

Senator Mike Lee of Utah on Thursday introduced legislation that would impose strict new federal rules on adult sites and platforms, strongly echoing similar regulations imposed last year in North Carolina.

Show More