Semiconductor company Analog Devices, Inc. (NASDAQ: ADI) has disclosed a data breach stemming from a hacker attack detected last month.
Analog Devices is a Massachusetts-based company with roughly 24,000 employees and $12 billion in annual revenue that designs and manufactures analog, mixed-signal, and digital signal processing chips used across industrial, automotive, and communications equipment.
In a Wednesday filing with the SEC, Analog Devices said it detected unauthorized access to certain systems on June 23.
An investigation conducted with the aid of outside security experts revealed that hackers stole certain files, but no information has been shared on what type of information was compromised.
The company said the incident did not disrupt its operations and it’s not aware of the files being leaked or used for malicious purposes.
According to Analog Devices, this cybersecurity incident is not expected to have a material impact on its business, operations, or financial condition.
Importantly, the semiconductor firm noted in its SEC filing that “Separately and unrelated, on July 26, 2026, the Company was made aware of public reports regarding a disparate cybersecurity matter and is currently assessing its validity, scope, and any potential impact.”
This likely refers to a new extortion group named ExfilSquad claiming to have stolen 570,000 records from Analog Devices.
ExfilSquad specializes in data theft and does not appear to use file-encrypting ransomware in its attacks. Its leak website currently lists Microsoft, the cities of Atlanta and Houston, and the UK Department of Education as victims, but SOCRadar pointed out in an analysis this week that some of the group’s claims seem exaggerated or fabricated.
Interestingly, Analog Devices no longer appears to show up on the cybercrime group’s website at the time of writing.
SecurityWeek has reached out to Analog Devices for additional information.
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