“CVE-2026-86950: Out-of-bounds write in CoreGraphics.” Now what?
Security advisories are written for security teams. The Briefing rewrites them for people: a flaw in the part of macOS that draws images and PDFs, where opening a booby-trapped file could let an attacker run code, and Apple says it’s been used in targeted attacks.
Then it answers the only question you care about: does this affect me?
Every advisory is checked against what’s on your Mac, so each one is marked:
- Affects this Mac, naming exactly which apps;
- Not this Mac;
- Actively exploited, when attackers are already using it.
Fresh every hour, from the sources that matter.
- the US government’s catalog of flaws being exploited (CISA);
- Apple’s security releases;
- Chrome, Firefox and Electron releases;
- the open-source vulnerability database (OSV).
The briefing is cryptographically signed, so nobody can slip in fake advisories along the way.
Filter to what matters: affects this Mac, attackers are using it, or everything.
The Briefing is free, and so is the live advisory feed behind it. Stale advisories make everyone less safe.


