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MonitoringIndiana AG filing · May 6, 2026

Horizon Media Reports Data Breach Affecting Personal Information

Horizon Media, an advertising and marketing company, formally reported a data security incident to Indiana regulators in May 2026. The breach, which occurred in January 2026, exposed various types of sensitive personal data, increasing risks for affected individuals. Those who receive a notification should take steps to monitor their personal information.

State
Indiana
Breach date
January 9, 2026
Reported
May 6, 2026

What may have been exposed

  • Full Name
  • Email Address
  • Mailing Address
  • Date of Birth
  • Social Security Number
  • Financial Account Information
  • Payment Card Information
  • Tax and Wage Documentation

Horizon Media, a company involved in digital marketing and audience analytics, formally reported a data breach to state regulators in Indiana on May 6, 2026. The incident, which allowed unauthorized access to its network infrastructure, was first identified on January 9, 2026. This information comes from public filings made with state authorities.

The reported breach involved the exposure of several categories of sensitive personal data. These included individuals' Full Name, Email Address, Mailing Address, Date of Birth, Social Security Number, Financial Account Information, Payment Card Information, and Tax and Wage Documentation. The presence of such diverse and critical data types raises significant concerns for those affected.

Exposure of this information can lead to various risks, including identity theft, financial fraud, and unauthorized access to other personal accounts. Affected individuals might experience phishing attempts or other scams targeting their personal or financial security. Vigilance is crucial for anyone whose data was compromised.

If you receive a data breach notification from Horizon Media, it is important to act promptly. Consider placing a fraud alert or freezing your credit with the three major credit bureaus. Regularly review your financial account statements, credit reports, and explanation of benefits for any suspicious activity. Additionally, be cautious of unsolicited communications requesting personal information and ensure strong, unique passwords for all online accounts.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Guard against tax fraud

    File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.

  • Watch your financial accounts

    Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.

  • Secure your online accounts

    Change the password on any account that reused an exposed password and turn on two-factor authentication wherever it's offered.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

What to know about the Horizon Media data breach

How many people were affected by the Horizon Media data breach, and what was exposed?
The filing does not give a count of affected people and lists the following information as involved: Full Name, Email Address, Mailing Address, Date of Birth, Social Security Number, Financial Account Information, Payment Card Information, Tax and Wage Documentation. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Where can I see the official Horizon Media breach notice?
Horizon Media's report is published by the Indiana Attorney General: https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/security-breaches/#529horizon-media-2026 Compare it with the letter you received to confirm the dates and details match.
What should I do after getting the Horizon Media 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.
Is the Horizon Media data breach letter legit or a scam?
A notice from Horizon Media in the mail matches the breach Horizon Media reported to the Indiana Attorney General on May 6, 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 Horizon Media through a phone number or website you find yourself.
Did Horizon Media offer free credit monitoring?
Check your letter from Horizon Media. If free credit or identity monitoring is offered, the enrollment code and deadline are printed in the notice itself. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Signing up doesn't waive any legal rights you may have.
Can I sue Horizon Media over the data breach?
It depends on what was exposed, the law in Indiana 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.
Is there a Horizon Media 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 Horizon Media. 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.
How much could a Horizon Media data breach settlement or claim be worth?
There is no set amount, and no Horizon Media 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. The filing lists Full Name, Email Address, Mailing Address as involved. Keep receipts and records; they're what damages claims are built on.
Do I need a Horizon Media 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.

Source: Indiana Attorney General filing

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Horizon Media Data Breach 2026: Filing Record