Industry Alerts and Technical Resources
Security technology is often selected through specifications, listings, manufacturer literature, and routine functional testing. Those sources are important, but they may not fully explain how a system behaves during abnormal conditions or how regulatory, legal, and supply-chain developments affect installed equipment.
SSI maintains these resources to help Virginia property owners, risk managers, insurers, pharmacies, municipalities, and other stakeholders ask more precise questions about system performance.
Legal matters are described as allegations unless and until adjudicated. Product and service status is dated because availability and support can change.
Class Action Lawsuits Target Alarm Manufacturers Over Undisclosed Life-Safety Defects:
A series of class action lawsuits filed between 2022 and 2026 has placed the electronic security and life-safety industry under unprecedented legal scrutiny. These cases—spanning manufacturers such as GE/Carrier, Resideo/Honeywell, and now UL LLC— share a common theme: allegations that critical defects in fire and intrusion control equipment were known, concealed, and allowed to persist in the marketplace for years.
The most recent filing, UL Class Action Case 1:26-cv-01561 (Filed Feb. 11, 2026), marks a dramatic escalation. For the first time, a lawsuit targets not only manufacturers but also a standards and certification body, alleging that UL’s certification practices contributed to unsafe systems remaining in service.
Together, these lawsuits represent a turning point for the security industry—one that raises serious questions about product testing, disclosure obligations, and the integrity of life-safety certifications.
Summary of the pending Allegations
1. GE / Carrier (Interlogix) Class Action
Case Number: 2:22-cv-05296 (BRM) (SDA) Filed 2022
Core allegation: Interlogix-branded combination fire/burglar control panels contained a single-point-of-failure data-bus defect. If any portion of the wiring was damaged—especially during a fire—the entire system could allegedly become instantly nonfunctional, leaving occupants without audible warning or central-station notification.
Key claims:
- Violation of UL 985, UL 1023, and NFPA 72
- Defendants allegedly knew or should have known of the defect for years
- Failure to disclose the risk to consumers, AHJs, or integrators
- Damages sought:
$5 million+
2. Resideo / Honeywell (Vista Series) Class Action
Case Number: 22-cv-05592 (MEF) (CLW) Filed 2022
Core allegation: Honeywell/Resideo Vista-series panels used a single data-bus architecture that could allegedly fail silently during fire conditions, creating a catastrophic life-safety hazard.
Key claims:
- Misrepresentation of UL and NFPA compliance
- Continued sale of affected units despite alleged internal awareness
- Failure to warn dealers, monitoring centers, or end users
- Alleged concealment of a known defect affecting millions of installed systems
3. UL Underwriters Laboratories, LLC Class Action
Case 1:26-cv-01561 (Filed Feb. 11, 2026)
Core allegation: UL is accused of certifying products with known or foreseeable safety defects, thereby enabling defective life-safety systems to enter and remain in the marketplace.
Key claims (based on the filing):
- UL allegedly failed to apply appropriate testing standards
- UL allegedly certified systems that did not meet the requirements of UL 985, UL 1023, and NFPA 72
- UL allegedly ignored or inadequately addressed reports of field failures
- UL’s certification was allegedly used by manufacturers to market defective systems as compliant and safe
- Plaintiffs argue UL’s actions contributed to widespread deployment of unsafe alarm systems
Newly Added Allegation From the Filing
The lawsuit explicitly states that:
“Manufacturers that have sold and/or continue to sell UL-listed Fire Alarm Systems include, but are not limited to, Honeywell International Inc. (‘Honeywell’), Johnson Controls, Inc. (‘Johnson Controls’), and Digital Monitoring Products, Inc.
This language broadens the scope of the case significantly. It places multiple major manufacturers under the umbrella of potential liability—not for defects alone, but for the continued sale of UL-listed systems whose certification is now being challenged.
The Common Thread: Failure to Disclose Known Defects
Across all three lawsuits, plaintiffs allege a pattern:
- Manufacturers were aware of defects through internal testing, field reports, or engineering analysis.
- Defects were not disclosed to integrators, AHJs, insurers, or consumers.
- Products continued to be sold, installed, and certified as compliant.
- Life-safety systems failed in ways that could result in injury or death.
If proven, these allegations would represent one of the most serious systemic failures in the history of the electronic security industry. Industry Expert Tests Popular Control Panels & Documents Failures
Honeywell Ademco Test
Johnson Controls/Tyco DSC Test
(DMP Test)
Are these systems protecting your site?
If your site utilizes one of the product families identified in the pending litigation, the most important question is not whether the allegations will ultimately be sustained.
The more immediate question is:
How does your system perform under abnormal operating conditions?
Security Systems Inc. offers non-destructive Protection Verification evaluations designed to help owners better understand system behavior through observation, documentation, and engineering review.