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Pearson Data Incident

Reported by on 8/6/19

Dear District 204 Community,

District 204 was recently notified by Pearson Clinical Assessment that the company experienced a data security incident related to their AIMSweb 1.0 product by an unauthorized third party. District 204 used AIMSweb 1.0 to track student academic progress and is one of 13,000 Pearson clients impacted by this incident.

Pearson informed us that the student data affected was limited to only student first name and last name, and in some cases, date of birth. No test scores, performance data or any other identifying student information was part of the data incident. According to Pearson, the data impacted was from the school years 2001-2016 and involved approximately 49,000 District 204 students enrolled during that time. The data also included approximately 2,300 staff members’ first and last names and school email addresses.

Although Pearson has provided no evidence that any data was misused, out of abundance of caution, the district wants to make you are aware of this incident. Free credit monitoring service from Experian is available to any student who was enrolled in District 204 during 2001-2016. Pearson is providing this free service as a precautionary measure. If you are interested in learning more about this option, please click the link below for details, call 866-883-3309 or email

As a school district, we take very seriously the security of all student, family and staff data. Only the most limited data is provided to vendors for required services. Contracts with outside vendors are closely vetted to ensure measures are in place at all times to safeguard that data. Pearson Clinical Assessment has worked with cybersecurity experts to evaluate the incident and assured us that changes have been implemented to prevent this from happening again with their product.

If you have questions, please contact Pearson Clinical Assessment at


Adam Smeets
Chief Technology Officer



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