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Tishman Speyer data breach investigation

Tishman Speyer, a prominent real estate firm, reported a data security incident to Indiana officials in September 2026, indicating an exposure in March 2026. This breach may have compromised sensitive personal data like Social Security Numbers and financial details. Individuals who received a notification letter should understand the potential risks and their legal options regarding the company's security practices.

Filed
September 16, 2026
Regulator
Indiana AG
People affected
Not stated
File status
Monitoring

What the filing confirms

  • Tishman Speyer reported the incident to the Indiana Attorney General.
  • Information involved: Full Name, Social Security Number, Date of Birth, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, Mailing Address, Phone Number.

Still unknown

  • 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.
Read the filing at the source

Investigation notes

Tishman Speyer, a globally recognized real estate developer and manager, disclosed a data security incident to the Indiana Attorney General on September 16, 2026. The company's filing indicates that this breach occurred on or about March 28, 2026. This report initiates an inquiry into the extent of the security lapse and the measures Tishman Speyer had implemented to protect the sensitive information entrusted to it.

The company's official filing confirms that a range of highly sensitive personal data categories were potentially compromised. These include individuals' Full Name, Social Security Number, Date of Birth, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, Mailing Address, and Phone Number. The exposure of these specific data types creates significant, long-term risks for identity theft, financial fraud, and targeted phishing scams against affected individuals.

As a custodian of personal information, Tishman Speyer was legally obligated under Indiana state law to maintain robust security protocols to safeguard this data. The occurrence of a data breach, particularly one involving such critical and sensitive details, raises serious questions about the adequacy of their digital infrastructure, monitoring systems, and data protection practices. An investigation will seek to determine if the company fulfilled its fundamental duties to protect those whose data it collected and stored.

If you have received a data breach notification letter from Tishman Speyer, it serves as official confirmation that your private information was likely exposed. It is prudent to carefully review the notification for any specific instructions and consider taking proactive steps such as placing a fraud alert on your credit reports. Continuously monitor your financial accounts and any statements for suspicious activity, and remain vigilant against unexpected communications requesting personal details.

Receiving an official notification establishes that you have experienced a concrete injury due to this incident. You do not need to prove actual financial loss or identity theft to explore your potential legal options. Our firm is currently investigating Tishman Speyer's conduct and security practices related to this data breach to determine if affected individuals have grounds to pursue a claim for the increased risk and potential damages they now face.

What our attorneys examine

A cyberattack does not excuse a company from protecting the information it holds. We look at whether Tishman Speyer 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 Indiana.

Tishman Speyer data breach questions

How many people were affected by the Tishman Speyer 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, Social Security Number, Date of Birth, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, Mailing Address, Phone Number. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Is the Tishman Speyer data breach letter legit or a scam?
A notice from Tishman Speyer in the mail matches the breach Tishman Speyer reported to the Indiana Attorney General on September 16, 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 Tishman Speyer through a phone number or website you find yourself.
Did Tishman Speyer offer free credit monitoring?
Check your letter from Tishman Speyer. 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. Enrolling does not give up your right to bring a claim.
Is there a Tishman Speyer 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 Tishman Speyer. 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 Tishman Speyer 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.
Where can I see the official Tishman Speyer breach notice?
Tishman Speyer's report is published by the Indiana Attorney General: https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/security-breaches/#9tishman-speyer-2026 Compare it with the letter you received to confirm the dates and details match.
Do I need a Tishman Speyer 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 Tishman Speyer 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.
How much could a Tishman Speyer data breach settlement or claim be worth?
There is no set amount, and no Tishman Speyer 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, Social Security Number, Date of Birth as involved. Keep receipts and records; they're what damages claims are built on.

Other open files in Indiana

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.