The identifier was the target: how ad systems make a principal selectable
The Ad System Can Pick Out Your Phone
The October 2026 disclosures about spyware delivered through advertising also showed advertising identifiers, synced cookies and IP addresses working as a way to pick out specific devices. Companion to CB-276, this brief asks how a principal becomes selectable through that identity layer, which links in it can be reduced, and whether removal from people-search sites reaches it. Built from the same primary research reports. For security leads and family offices.
Unlock this Command Brief.
Get this assessment, the full subscription collection, and new intelligence as it is published.
For your first year, then $100/month. Or $750 for the first year, then $1,000 annually.
- The CORGI Morning Brief, each morning
- This brief and the subscription collection, 100+ briefs
- New Command Briefs as they are released
- Principal and Analyst briefs, as PDF
Secure checkout through Substack. Substack asks for your email first.