VULNpocalypse
LowBreach / campaignMonitoring

Chartboost LLC: n0n ransomware group claims attack on its leak site

The n0n ransomware group claims Chartboost LLC on its leak site, per RansomLook. It is unverified, so partners should watch for an official notice.

Published
Exploitation
No, the sources contain only a leak-site claim, and no compromise or exploitation is confirmed

What happened

The n0n ransomware group lists Chartboost LLC on its leak site, according to the claim tracker RansomLook. RansomLook dates the entry 2026-11-06. It describes the listed organisation as “mobile advertising” based in the United States.

A leak-site listing is a claim by the group. It is not proof of an attack. Several key points are not confirmed:

  • Chartboost has not confirmed any incident in the provided sources.
  • No independent outlet has verified the claim.
  • What data, if any, was taken is not confirmed.
  • How access was gained is not confirmed.
  • Whether any data has been published is not confirmed.

RansomLook’s page for n0n shows the group posted many other organisations in the same period. Chartboost is one of several listings dated 2026-11-06 RansomLook.

Am I affected?

Not confirmed. The sources do not say which systems, customers, partners or data types are involved. No affected products, versions or CVEs are named.

What to do now

  1. Watch for a statement or notification from Chartboost itself, and rely on that over leak-site listings.
  2. If you hold credentials or API keys shared with Chartboost, follow your own internal policy on reviewing third-party access while the claim remains unverified.
  3. Check back for independent reporting or an official disclosure before drawing conclusions about impact.

Sources