Connect with us

Hi, what are you looking for?



Johnson Controls Hit by Ransomware

Johnson Controls has confirmed being hit by a disruptive cyberattack, with a ransomware group claiming to have stolen 27Tb of information from the company.

Johnson Controls

Building technology giant Johnson Controls has confirmed being hit by a disruptive cyberattack that appears to have been carried out by a ransomware group. 

An 8-K form filed by the company this week with the Securities and Exchange Commission (SEC) revealed that some of its internal IT infrastructure and applications were disrupted as a result of a cybersecurity incident. 

An investigation has been launched to determine what type of information may have been compromised. 

“To date, many of the Company’s applications are largely unaffected and remain operational. To the extent possible, and in line with its business continuity plans, the Company implemented workarounds for certain operations to mitigate disruptions and continue servicing its customers. However, the incident has caused, and is expected to continue to cause, disruption to parts of the Company’s business operations,” Johnson Controls said in the SEC filing.

The incident could force the company to delay the release of its fourth quarter and full fiscal year financial results.

Johnson Controls provides HVAC, automation, security, safety, smart home, retail, industrial refrigeration, and energy solutions and services. The company has more than 100,000 employees across 150 countries. 

Threat intelligence group VX-Underground reported that a ransomware group known as Dark Angels is behind the attack on Johnson Controls. The hackers claim to have stolen 27Tb of data from the company’s systems.

Researcher and VX-Underground member Gameel Ali has posted a screenshot of what appears to be the ransom note sent by the cybercriminals to the company.  

Advertisement. Scroll to continue reading.

There is no mention of Johnson Controls on the ransomware group’s Tor-based leak website at the time of writing. 

The Dark Angels gang emerged in May 2022, using both data theft and file-encrypting malware to convince victims to pay a ransom. The hackers have attacked several major organizations in the United States over the past months.

The group has created its ransomware using leaked Babuk source code, which has been used by several threat actors to create their own malware. 

Related: City of Dallas Details Ransomware Attack Impact, Costs 

Related: Critical Infrastructure Organizations Warned of Snatch Ransomware Attacks

Related: Ransomware Gang Takes Credit for Disruptive MGM Resorts Cyberattack

Written By

Eduard Kovacs (@EduardKovacs) is a managing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Join us as we delve into the transformative potential of AI, predictive ChatGPT-like tools and automation to detect and defend against cyberattacks.


As cybersecurity breaches and incidents escalate, the cyber insurance ecosystem is undergoing rapid and transformational change.


Expert Insights

Related Content


The changing nature of what we still generally call ransomware will continue through 2023, driven by three primary conditions.


Satellite TV giant Dish Network confirmed that a recent outage was the result of a cyberattack and admitted that data was stolen.


A SaaS ransomware attack against a company’s Sharepoint Online was done without using a compromised endpoint.


Several major organizations are confirming impact from the latest zero-day exploits hitting Fortra's GoAnywhere software.

Management & Strategy

Industry professionals comment on the recent disruption of the Hive ransomware operation and its hacking by law enforcement.

Data Breaches

KFC and Taco Bell parent company Yum Brands says personal information was compromised in a January 2023 ransomware attack.


US payments giant NCR has confirmed being targeted in a ransomware attack for which the BlackCat/Alphv group has taken credit.

Malware & Threats

Unpatched and unprotected VMware ESXi servers worldwide have been targeted in a ransomware attack exploiting a vulnerability patched in 2021.