Incident Score: Analysis & Impact (SPR1775867183)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Spring ISD'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 Spring ISD 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 Spring ISD breach identified under incident ID SPR1775867183.
The analysis begins with a detailed overview of Spring ISD's information like the linkedin page: https://www.linkedin.com/company/springisd, the number of followers: 13036, the industry type: Primary and Secondary Education and the number of employees: 4414 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 689 and after the incident was 630 with a difference of -59 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 Spring ISD and their customers.
On 05 May 2023, Spring Independent School District (ISD) disclosed Data Breach issues under the banner "Spring ISD Data Breach - Employee SSNs Leaked in Email".
Spring Independent School District (ISD) in Texas confirmed that multiple employees have been placed on administrative leave following the accidental exposure of sensitive personal data.
The disruption is felt across the environment, and exposing Names, Social Security numbers, dates of birth.
In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Requested recipients delete the email and refrain from sharing the exposed information, and began remediation that includes Provided credit-monitoring resources to affected employees, and stakeholders are being briefed through Notified employees via email, issued public statement.
The case underscores how Ongoing, with advisories going out to stakeholders covering Notified affected employees via email.
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 Phishing: Spearphishing Link (T1566.002) with lower confidence (30%), supported by evidence indicating email intended for district partners during Teacher Appreciation Week. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating names, Social Security numbers, and dates of birth of employees. Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol: Email (T1048.003) with high confidence (90%), supported by evidence indicating email...inadvertently included sensitive personal data. Under the Impact tactic, the analysis identified Data Manipulation: Stored Data Manipulation (T1565.001) with moderate confidence (50%), supported by evidence indicating accidental exposure of sensitive personal data and Data Destruction (T1485) with lower confidence (20%), supported by evidence indicating requested recipients delete the email. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Spring ISD Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/springisd/incident/SPR1775867183
- Spring ISD CyberSecurity Rating page: https://www.rankiteo.com/company/springisd
- Spring ISD Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/spr1775867183-spring-independent-school-district-breach-april-2026/
- Spring ISD CyberSecurity Score History: https://www.rankiteo.com/company/springisd/history
- Spring ISD CyberSecurity Incident Source: https://abc13.com/post/spring-isd-employees-leave-mistakenly-leaking-sensitive-employee-data-email-district-says/18868365/
- 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