This record tracks a ransomware attack claimed by the
0apt group against
North Star Media. 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.
214days open
t1 · Published
t2 · Pending
Business Category
Communication / Marketing
Published
January 30, 2026
Disclosed / Notified
Not disclosed yet
Attack Summary
North Star Media Group is a full-service advertising and media buying agency based in the United States, specializing in strategic planning and placement of radio commercials, programs, and print advertising both locally and nationally. The agency offers services including media placement, audio and print production, creative design, and graphic design, positioning itself as a leading media buyer for radio paid programming placement. Operating primarily in the Communication and Marketing sector, the company serves clients across the US with comprehensive media buying solutions. The firm was neutrally listed as a ransomware victim associated with the threat actor 0apt.
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
Cross-referenced against HaveIBeenRansom's dark-web index of ransomware leaks, breaches & infostealer logs.
0
found in Infostealer logs
0
found in Traditional breaches
0
found in Ransomware leaks
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••• emails
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••• emails
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••• emails
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••• emails
Full exposure is locked
See every breached email, the internal-vs-external split and each leak source behind this victim.
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