Breach reported 7 August 2026
- Status
- Confirmed breach
- People affected
- 250,576 people
- Reported
- 7 August 2026
- Found to notice
- 100 days (found 29 April 2026, by the company’s letter)
What was exposed
- Social Security numbers
How it happened
- How
- Hacking
unauthorized access to its data by a third party, who we determined was able to exfiltrate certain files
source
Before the notice: the ransomware gang Qilin named Cushman & Wakefield on its leak site on 4 May 2026, 95 days before this was reported. Matched by the organisation’s name: the notice itself does not say who the attacker was.
What changed since it was first reported
- Confirmed breach, 250,576 people (Indiana Attorney General)
What the letter says
- Found
On April 29, 2026, Cushman & Wakefield became aware of unauthorized access to its data by a third party
- Exposed
we believe that there may have been unauthorized access to your name and [Extra2]
- Offered
to help protect your identity, we are offering complimentary access to Experian IdentityWorksSM for 24 months
Got a letter or email about this breach? Check it is real →
Read the letter (PDF), as filed with the California Attorney General.
Sources
- Official notice · 7 August 2026 · 2 Vermont residentsVermont Attorney General
- Official notice · 7 August 2026 · 250,576 peopleIndiana Attorney GeneralYear-to-date report (DB-October-Year-to-Date-Report-2026.pdf)
- Official notice · 7 August 2026California Attorney General
Official notices are read by code from the regulator’s own register. More notices to Vermont, Indiana, California. · Corrections and changes