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Simpson Manufacturing Takes Systems Offline Following Cyberattack

Simpson Manufacturing is experiencing disruptions after taking IT systems offline following a cyberattack.

Engineering and manufacturing firm Simpson Manufacturing says it has taken some of its IT systems offline following a cyberattack this week.

Headquartered in Pleasanton, California, Simpson Manufacturing produces building materials, including anchors, connectors, and new construction and retrofitting materials.

In an 8K-Form filing this week, the company told the Securities and Exchange Commission that, on Tuesday, it discovered a cyberattack that impacted some of its systems.

“On October 10, 2023, Simpson Manufacturing Co., Inc. experienced disruptions in its Information Technology (IT) infrastructure and applications resulting from a cybersecurity incident,” the company said.

Upon discovering the malicious activity, the manufacturer took steps to contain the incident, “including taking certain systems offline”.

Simpson Manufacturing says it has been working on addressing the issue, but the incident is expected to continue to cause disruption to parts of its business operations.

“The company has engaged leading third-party cybersecurity experts to support its investigation and recovery efforts. The investigation to assess the nature and scope of the incident remains ongoing and is in its early stages,” Simpson Manufacturing says.

Although the company did not provide information on the type of cyberattack it has experienced, taking systems offline is typically the response to a ransomware attack.

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SecurityWeek has emailed Simpson Manufacturing for a statement and will update this article as soon as a reply arrives.

According to a July 2023 report from Dragos the number of ransomware attacks targeting industrial organizations and infrastructure has doubled over the past year, mainly fueled by a drop in ransomware revenue in 2022, as more and more victims refused to pay a ransom.

In January, British manufacturing company Morgan Advanced Materials fell victim to a ransomware attack that damaged some of its applications and file systems. In August, the company told the London Stock Exchange that some applications were still being recovered and that the incident had a £23 million (approximately $28 million) impact on the first half of 2023’s operating profit.

Related: MGM Resorts Says Ransomware Hack Cost $110 Million

Related: Motel One Discloses Ransomware Attack Impacting Customer Data

Related: Johnson Controls Ransomware Attack Could Impact DHS

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

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