Secure Matrix LLC v. Earthbound Holding LLC

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Secure Matrix LLC (Delaware)
  • Defendant: Earthbound Holding, LLC (Delaware)
  • Plaintiff's Counsel: Rabicoff Law LLC
• Case Identification: 3:26-cv-02722, N.D. Tex., 08/14/2026
• Venue Allegations: Venue is alleged to be proper in the Northern District of Texas because the defendant, Earthbound Holding LLC, maintains an established place of business within the district.
• Core Dispute: Plaintiff alleges that Defendant's unidentified products and services infringe a patent related to multi-device user authentication systems.
• Technical Context: The technology concerns methods for securely authenticating users for online access or transactions by coordinating communications between a primary computer, a user's personal electronic device, and a central verification server.
• Key Procedural History: The complaint does not mention any prior litigation, Inter Partes Review (IPR) proceedings, or licensing history related to the patent-in-suit.

Case Timeline

Date	Event
2012-11-21	U.S. 8,677,116 Patent Priority Date
2013-08-09	U.S. 8,677,116 Patent Application Filing Date
2014-03-18	U.S. 8,677,116 Patent Issue Date
2026-08-14	Complaint Filing Date

II. Technology and Patent(s)-in-Suit Analysis

U.S. Patent No. 8,677,116 - Systems and methods for authentication and verification

The Invention Explained

• Problem Addressed: The patent's background section notes a "growing need to authenticate users trying to access a secured internet portal (e.g., website) or a real-world secured device" and highlights the concurrent need for secure and fast online payment capabilities ʼ116 Patent, col. 1:20-29
• The Patented Solution: The invention proposes a three-part authentication system involving a computer providing a service (e.g., a web server), a user's electronic device (e.g., a smartphone), and a separate verification server ʼ116 Patent, abstract The computer first generates and displays a "reusable identifier" (e.g., a QR code) and also sends this identifier to the verification server ʼ116 Patent, col. 6:15-19 The user's device then captures this identifier, adds "user verification information," and sends both to the verification server, which evaluates the information to grant or deny access ʼ116 Patent, col. 6:19-33
• Technical Importance: The use of a "reusable identifier" that does not contain user-specific or transaction-specific information is intended to make the process faster, more reliable, and more secure than systems requiring the generation of complex, single-use tokens or embedding sensitive data directly into the token ʼ116 Patent, col. 6:35-62

Key Claims at a Glance

• The complaint alleges infringement of one or more "Exemplary '116 Patent Claims" identified in an exhibit, without specifying them in the body of the complaint Compl. ¶11 Independent Claim 1 is a representative method claim.
• Essential elements of Independent Claim 1 include:
  • Using a computer system to receive a first signal from a computer providing a secured capability, where the first signal comprises a "reusable identifier."
  • Using the computer system to receive a second signal from a user's electronic device, where the second signal comprises a copy of the reusable identifier and "user verification information."
  • Using a processor to evaluate, based on the first and second signals, whether the user is authorized.
  • In response to an authorization, transmitting a third signal with authorization information to the user's device and/or the initial computer.
• The complaint reserves the right to assert other claims, which may include dependent claims or other independent claims Compl. ¶11

III. The Accused Instrumentality

Product Identification

• The complaint identifies the accused instrumentalities as the "Exemplary Defendant Products" Compl. ¶11 Specific product names are not provided in the body of the complaint.

Functionality and Market Context

• The complaint does not provide sufficient detail for analysis of the accused products' specific functionality. It alleges that the products "practice the technology claimed by the '116 Patent" and that this is demonstrated in charts included as Exhibit 2, which was not provided with the complaint itself Compl. ¶16 No probative visual evidence provided in complaint.

IV. Analysis of Infringement Allegations

The complaint alleges that infringement can be understood by comparing the asserted claims to the "Exemplary Defendant Products," with the details of this comparison contained in an unprovided Exhibit 2 Compl. ¶16 The following table summarizes the infringement theory for Claim 1 as it would apply based on the complaint's general allegations.

'116 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
using the computer system to receive a first signal from the computer providing the secured capability, the first signal comprising a reusable identifier corresponding to the secured capability...	The complaint alleges, via reference to Exhibit 2, that the Defendant's system involves a verification server receiving a signal containing a reusable identifier from a computer offering a secured service.	¶16	col. 7:14-17
using the computer system to receive a second signal from an electronic device being used by the user, the second signal comprising a copy of the reusable identifier and user verification information;	The complaint alleges that the Defendant's verification server receives a second signal from a user's device, which contains a copy of the identifier and user-specific information.	¶16	col. 7:18-24
using a processor of the computer system to evaluate, based at least on the first signal and the second signal, whether the user is authorized to conduct the at least one interaction with the secured capability;	The complaint alleges that a processor within the Defendant's system evaluates the information from the first and second signals to determine if the user is authorized.	¶16	col. 7:25-32
...transmitting a third signal comprising authorization information to at least one of the electronic device and the computer.	The complaint alleges that upon successful evaluation, the Defendant's system transmits an authorization signal to the user's device and/or the initial computer to complete the authentication.	¶16	col. 8:1-3

Identified Points of Contention

• Scope Questions: A central question may be whether the token or session ID mechanism used by the accused products, if any, qualifies as a "reusable identifier" within the meaning of the claims. The definition of "user verification information" could also be a point of dispute.
• Technical Questions: Since the complaint lacks specific technical details, a primary question for the court will be whether discovery shows that the accused products actually employ the three-party architecture (originating computer, user device, verification server) and the specific signal-passing sequence required by the asserted claims.

V. Key Claim Terms for Construction

The Term: "reusable identifier"

• Context and Importance: This term is the core of the asserted invention, distinguishing it from single-use or more complex tokens. Its construction will be critical, as infringement will depend on whether the Defendant's system uses a token that falls within the term's scope.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification states that the identifier "does not contain user-specific or interaction-specific information" ʼ116 Patent, col. 9:1-2, which could support a broad interpretation covering any simple, non-sensitive session token that is recycled or used for a finite period.
  • Evidence for a Narrower Interpretation: The patent's examples focus heavily on identifiers that are visually or audibly presented and then captured by a second device, such as a QR code ʼ116 Patent, col. 6:15-19 ʼ116 Patent, col. 9:6-10 A party could argue this context limits the term to such "scannable" or cross-device identifiers.

The Term: "user verification information"

• Context and Importance: This term defines the data that the user's personal device adds to the authentication process to prove the user's identity. The breadth of its definition will determine what kind of data the accused system must be shown to transmit from the user's device to infringe.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification provides a broad definition, stating the term can include information specific to the user (name, email), specific to the hardware (device ID, OS), or both ʼ116 Patent, col. 12:5-15 This suggests a wide range of data could satisfy the limitation.
  • Evidence for a Narrower Interpretation: The specification also describes using this information to "verify and authenticate the user" and gives examples like entering a PIN ʼ116 Patent, col. 18:20-25 This could support an argument that the term requires more than just passive device identifiers, but rather information that actively confirms the user's identity or presence.

VI. Other Allegations

• Indirect Infringement: The complaint alleges induced infringement, stating that the Defendant provides "product literature and website materials" that instruct and encourage end-users to use the accused products in a manner that directly infringes the '116 Patent Compl. ¶14 Compl. ¶15
• Willful Infringement: The complaint asserts that service of the complaint itself provides "Actual Knowledge of Infringement" Compl. ¶13 It further alleges that despite this knowledge, the Defendant "continues to make, use, test, sell, offer for sale, market, and/or import" the infringing products Compl. ¶14 These allegations may form the basis for a claim of post-filing willful infringement.

VII. Analyst's Conclusion: Key Questions for the Case

• Definitional Scope: A core issue will be one of definitional scope: can the term "reusable identifier," which is exemplified in the patent by scannable QR codes, be construed to cover the specific session management or token-passing mechanisms utilized by the Defendant's accused products?
• Evidentiary Basis: A key evidentiary question will be whether discovery uncovers a technical architecture in the accused products that mirrors the specific three-party communication and evaluation process required by Claim 1. The complaint's lack of technical detail makes this a central and open question for the litigation.