IES Communications Breach Exposes 1,000 GB of Data

IES Communications LLC, also known as COMM, a major U.S. provider of low-voltage communications technology and infrastructure solutions, experienced a data breach. The attack was attributed to the ransomware group known as CHAOS, which claimed responsibility and posted about the breach on the Tor network.

On Marchn17, 2025 it was discovered the cybercriminals obtained 1,000 GB of company data. which included former and current employee data. Compromised information included first and last name, date of birth, address, certain payroll information, Social Security Number, and other identifying information.

An investigation was launched and one June 6, 2025 it was determined that the data breach impacted at least 6,241 individuals in the United States. The cybersecurity incident was disclosed to the Maine and Texas Attorney Generals' offices beginning on June 1, 2025.

Affected individuals include 1,061 Texas residents and one from Maine. IES notified current and former employees by mail on July 3, 2025.

IES Communications' response

After discovering the attack, IES Communications acted to contain the threat and minimize its impact. In addition to the required state disclosures, IES is offering 24 months of free IdentityWorks fraud detection services.

If you receive notification from IES about this breach, you may want to:

• Sign up for the free Experian IdentityWorks fraud prevention services.
• Monitor your credit reports and financial accounts for any unusual activity.
• Be alert for phishing emails or phone calls that may use your exposed information.
• Consider placing a fraud alert or credit freeze with major credit bureaus.

More information about the company can be found on the IES Communications website.