Incident Score: Analysis & Impact (INS1778605156)
The details regarding individual company incidents & reports gives you full view from every side.
Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Instructure's Breach and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts Instructure Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the Instructure breach identified under incident ID INS1778605156.
The analysis begins with a detailed overview of Instructure's information like the linkedin page: https://www.linkedin.com/company/instructure-inc-, the number of followers: 79694, the industry type: E-Learning Providers and the number of employees: 2172 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 100 and after the incident was 100 with a difference of 0 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on Instructure and their customers.
On 02 May 2024, Instructure disclosed Data Breach issues under the banner "ShinyHunters Breaches Instructure in Massive Educational Data Theft".
The cybercriminal group ShinyHunters targeted Instructure, the provider of the Canvas learning management system, exploiting a vulnerability in Canvas Free for Teacher.
The disruption is felt across the environment, affecting Canvas Free for Teacher, and exposing 6.65 terabytes, with nearly 275 million records at risk.
In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Revoked compromised credentials, deployed security patches, rotated encryption keys, and began remediation that includes Security patches, encryption key rotation, and stakeholders are being briefed through Public disclosure on May 2.
The case underscores how Ongoing, with advisories going out to stakeholders covering Extortion messages reported by users on May 7.
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (90%), supported by evidence indicating exploited a vulnerability in Canvas Free for Teacher service. Under the Credential Access tactic, the analysis identified Steal Application Access Token (T1528) with moderate to high confidence (70%), supported by evidence indicating instructure revoked compromised credentials and rotated encryption keys. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating 275 million records...names, email addresses, student ID numbers, private communications. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating shinyHunters claims to have exfiltrated 6.65 terabytes of data and Exfiltration Over Web Service (T1567) with moderate to high confidence (70%), supported by evidence indicating threatening to leak the stolen data if demands are not met. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1471) with lower confidence (10%), supported by evidence indicating no evidence of data encryption; breach focused on exfiltration and Defacement (T1491) with moderate confidence (50%), supported by evidence indicating users reporting extortion messages upon logging in. Under the Lateral Movement tactic, the analysis identified Exploitation of Remote Services (T1210) with moderate confidence (60%), supported by evidence indicating canvas Free for Teacher service used by 8,809 institutions worldwide. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Instructure Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/instructure-inc-/incident/INS1778605156
- Instructure CyberSecurity Rating page: https://www.rankiteo.com/company/instructure-inc-
- Instructure Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/ins1778605156-instructure-breach-april-2026/
- Instructure CyberSecurity Score History: https://www.rankiteo.com/company/instructure-inc-/history
- Instructure CyberSecurity Incident Source: https://edtechmagazine.com/higher/article/2026/05/canvas-breach-reframing-higher-eds-saas-risk-exposure
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf