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CARLSON BUILDING MAINTENANCE INC. data breach investigation

Filed
March 9, 2026
Regulator
Illinois AG
People affected
Not stated
File status
Investigation Open

What the filing confirms

  • CARLSON BUILDING MAINTENANCE INC. reported the incident to the Illinois Attorney General.

Still unknown

  • Which categories of personal information were taken. The filing does not list them.
  • How many people were affected. The filing does not give a number.
  • What caused the incident beyond the description in the filing.
  • How the attackers got in, and whether basic safeguards such as multi-factor sign-in were in place.

Investigation notes

Carlson Building Maintenance Inc. appears to be a facilities management and commercial janitorial services provider, which typically manages extensive human resources and payroll records for a large, distributed workforce. In the course of their business operations, the company collects and stores sensitive employee data, including payroll information, tax documentation, and personal identification records required for employment verification and benefits administration. This data breach was officially reported to the Illinois Attorney General in 2026, confirming that unauthorized access to their internal systems occurred. If you received a data breach notification letter from the company, it indicates that your personal information may have been compromised. This notice is intended to inform you of the incident and provide guidance on the steps you should take to protect your identity.

What our attorneys examine

A cyberattack does not excuse a company from protecting the information it holds. We look at whether CARLSON BUILDING MAINTENANCE INC. used reasonable security, how long it kept the data, and how quickly it told the people affected. Those questions decide whether a class action or individual claim is possible. Read more on how ransomware lawsuits work, or browse other incident files in Illinois.

CARLSON BUILDING MAINTENANCE INC. data breach questions

Is the CARLSON BUILDING MAINTENANCE INC. data breach letter legit or a scam?
A notice from CARLSON BUILDING MAINTENANCE INC. in the mail matches the breach CARLSON BUILDING MAINTENANCE INC. reported to the Illinois Attorney General on March 9, 2026. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact CARLSON BUILDING MAINTENANCE INC. through a phone number or website you find yourself.
Did CARLSON BUILDING MAINTENANCE INC. offer free credit monitoring?
Look for an enrollment code in your CARLSON BUILDING MAINTENANCE INC. notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Using the free service won't stop you from joining a lawsuit or settlement later.
Is there a CARLSON BUILDING MAINTENANCE INC. data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against CARLSON BUILDING MAINTENANCE INC.. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
What should I do after getting the CARLSON BUILDING MAINTENANCE INC. data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
Do I need a CARLSON BUILDING MAINTENANCE INC. data breach lawyer or attorney?
An attorney can read your notice and tell you whether a claim makes sense. A case review here is free, and data breach cases are usually handled on contingency, so there is no upfront cost.
Can I sue CARLSON BUILDING MAINTENANCE INC. over the data breach?
It depends on what was exposed, the law in Illinois and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.
How much could a CARLSON BUILDING MAINTENANCE INC. data breach settlement or claim be worth?
There is no set amount, and no CARLSON BUILDING MAINTENANCE INC. settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. Keep receipts and records; they're what damages claims are built on.

Other open files in Illinois

Attorney advertising. An incident file reflects a public regulator filing and our review of it; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.