Data breach at Canvas developer also affects RNTC
On May 4, 2026, a security incident was reported at Canvas developer Instructure. Instructure confirmed on May 7, 2026 that data of RNTC students and staff has also been affected. In this message, you can read what this means for you. For ongoing updates directly from Instructure, please visit their security incident and update page.
What we know so far
Instructure has reported that there was unauthorized access to part of its systems. Based on their investigation, the following data has been compromised:
- Names of students and staff
- Email addresses
- Messages between users
There is no evidence that passwords, dates of birth, government identifiers, or financial information were involved. Additionally, RNTC's Canvas environment is not connected to any financial or payment systems and is not integrated with any third-party platforms, so no such data was at risk on our end.
What this means for you
In our assessment, the most likely risks from this breach are phishing emails and the use of real names and email addresses to impersonate individuals. We therefore ask you to be extra vigilant about suspicious messages such as unexpected emails, emails requesting personal information, or emails referencing this incident. If in doubt about any message you receive, do not click any links or open attachments. You can read more about how to recognize phishing on the CISA website.
What we have done
As soon as we confirmed that RNTC was among the affected organizations, we reported the data breach to the Autoriteit Persoonsgegevens (the Dutch Data Protection Authority) within the legally required 72-hour window.
Canvas is fully back online and available for use. Instructure has confirmed that their forensic partners found no evidence that the unauthorized party currently has access to the platform.
Next steps
We are closely monitoring the situation and will continue to provide updates as soon as more information becomes available. Instructure is keeping their incident update page as the central source for confirmed updates and FAQs.
Questions or concerns?
If you have received a suspicious or unexpected message, or have any questions about this incident, please contact us at: info@rntc.com