This record tracks a ransomware attack claimed by the
interlock group against
North Stonington Elementary School. 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.
327days open
t1 · Published
t2 · Pending
Business Category
Education
Published
October 13, 2025
Disclosed / Notified
Not disclosed yet
Attack Summary
northstonington.k12.ct.us represents an education-sector institution located in the United States, identified within a threat-intelligence index under the ransomware victim listing type. The domain name and k12 designation indicate its operational context within a school or educational network environment in Connecticut. As part of the interlock threat actor association, this entity is cataloged to reflect cybersecurity exposure patterns relevant to education sector infrastructure. The description remains factual and neutral, focusing on classification, sector context, geographic location, and the established intelligence linkage without asserting unverified incident details. This entry supports threat-intelligence analysis for monitoring ransomware activity in US education sectors.
Leak Screenshots
SAMPLE
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Dark Web Exposure
Findings for northstonington.k12.ct.us
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
632+
found in Traditional breaches
39+
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
Chegg_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
McGraw Hill, Inc. (mheducation.com)
shinyhunters · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
2844Breaches_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
LKnet reserve chat · breach
••• emails
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