This record tracks a ransomware attack claimed by the
shinyhunters group against
Instructure.com - Canvas. It collects the publicly disclosed attack details — sector, location and
timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAP
Window Zero is the time the breach stayed in the open before
anyone said so — the gap between when the attack was first discovered
on the operator's leak site (t1) and when it was publicly disclosed (t2).
The wider this window, the longer victims, staff and customers were exposed with no warning.
19days
t1 · Published
t2 · Disclosed
Disclosed / Notified
Jul 26, 2025
Attack Summary
[AI generated] Instructure Inc. is a technology company that developed the Canvas Learning Management System (LMS). Founded in 2008, Canvas is used by educators and students worldwide to connect and integrate digital learning resources into a school's curriculum. Upgraded features include assessment and reporting tools, plus customizable apps. They also offer Bridge, an employee development and engagement software for businesses.
Leak Screenshots
SAMPLE
Proof-of-breach screenshots the operator posted from the stolen data. Previews are
redacted and locked — the originals are available on HaveIBeenRansom.
Dark Web Exposure
Findings for instructure.com
— indexed by HaveIBeenRansom.
199,130
found in Infostealer logs
2,873+
found in Traditional breaches
127+
found in Ransomware leaks
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+ 17 more leak sources locked
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Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.