Incident Score: Analysis & Impact (HAV1781714192)
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 Have I Been Pwned'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 Have I Been Pwned 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 Have I Been Pwned breach identified under incident ID HAV1781714192.
The analysis begins with a detailed overview of Have I Been Pwned's information like the linkedin page: https://www.linkedin.com/company/haveibeenpwned, the number of followers: 8628, the industry type: IT Services and IT Consulting and the number of employees: 12 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 333 and after the incident was 150 with a difference of -183 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 Have I Been Pwned and their customers.
On 15 June 2026, Individual users (global) disclosed Data Breach issues under the banner "56 Million Email Addresses and 124 Million Passwords Added to Have I Been Pwned from Infostealer Malware".
On June 15, 2026, the data breach notification service *Have I Been Pwned* (HIBP) expanded its database with 56.3 million unique email addresses and 124 million passwords, all compromised through infostealer malware targeting Windows PCs.
The disruption is felt across the environment, affecting Windows PCs, and exposing 56.3 million email addresses and 124 million passwords, with nearly 180.3 million (56.3M emails + 124M passwords) records at risk.
In response, and stakeholders are being briefed through Public disclosure via HIBP platform.
The case underscores how Ongoing (malware strain/source not specified), teams are taking away lessons such as The incident underscores the persistent threat posed by infostealer malware, which can bypass traditional breach detection and exploit stored credentials on personal devices, and recommending next steps like Users should check if their email addresses are affected via HIBP’s platform, enable multi-factor authentication, and regularly update security software to mitigate infostealer risks, with advisories going out to stakeholders covering Users can check if their email addresses are affected via HIBP’s platform.
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 User Execution: Malicious File (T1204.002) with moderate to high confidence (80%), with evidence including infostealer malware targeting Windows PCs, and malware designed to exploit stored credentials and Drive-by Compromise (T1189) with moderate confidence (60%), supported by evidence indicating infostealer malware...harvests saved passwords, browser data. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (80%), supported by evidence indicating infostealer malware targeting Windows PCs. Under the Credential Access tactic, the analysis identified OS Credential Dumping: LSASS Memory (T1003.001) with high confidence (90%), supported by evidence indicating harvests saved passwords, browser data, cookies from compromised systems, Credentials from Password Stores (T1555) with high confidence (90%), supported by evidence indicating infostealer malware that harvests saved passwords, browser data, and Steal Web Session Cookie (T1539) with moderate to high confidence (80%), supported by evidence indicating harvests...cookies from compromised systems. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating harvests saved passwords, browser data, cookies from compromised systems and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating stolen credentials originate from stealer logs records. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), with evidence including exfiltrate data over extended periods, and data breach notification service expanded with 124M passwords and Exfiltration Over Web Service (T1567) with moderate to high confidence (70%), supported by evidence indicating infostealers...can bypass traditional breach detection. Under the Defense Evasion tactic, the analysis identified Obfuscated Files or Information (T1027) with moderate to high confidence (70%), supported by evidence indicating infostealers...operate silently and can exfiltrate data over extended periods and Hide Artifacts: Hidden Files and Directories (T1564.001) with moderate confidence (60%), supported by evidence indicating infostealer malware...without users’ knowledge. Under the Impact tactic, the analysis identified Account Access Removal (T1531) with moderate confidence (50%), supported by evidence indicating 124 million passwords added to breach database. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Have I Been Pwned Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/haveibeenpwned/incident/HAV1781714192
- Have I Been Pwned CyberSecurity Rating page: https://www.rankiteo.com/company/haveibeenpwned
- Have I Been Pwned Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/hav1781714192-have-i-been-pwned-breach-june-2026/
- Have I Been Pwned CyberSecurity Score History: https://www.rankiteo.com/company/haveibeenpwned/history
- Have I Been Pwned CyberSecurity Incident Source: https://www.pcworld.com/article/3168200/124-million-stolen-passwords-discovered-check-your-accounts-now.html
- 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