Four things worth knowing from the week, and one worth doing something about.
OpenAI ships GPT-6 “Astra”
OpenAI released its next flagship model this week, with a matching upgrade to ChatGPT and its coding tool Codex. It was the single most-discussed technology story of the week by a wide margin.
Google patches a Chrome flaw already being exploited
Google has fixed CVE-2026-85046, a flaw in Chrome's JavaScript engine that attackers were actively using before the patch existed. It is the sixth Chrome vulnerability of 2026 found to be under attack in the wild. The fix is in Chrome 152.0.7977.82.
Passkeys arrive properly across Windows and Microsoft 365
From mid-September Microsoft begins a worldwide rollout of synced passkey support in its Windows and Mac apps, along with Entra passkeys on Windows and broader FIDO2 security key support.
Your Apple Watch is about to lose Walkie-Talkie
watchOS 27 arrives later this month and removes three things. Walkie-Talkie is gone. The Digital Crown double-click that switched between recent apps is gone. And the full app launcher is no longer the default view, replaced by a grid of five suggested apps plus Siri.
Your backup report says success. That is not the same as a restore.
A green tick on a backup report means data was copied. It does not mean it can be put back. The ACSC's own guidance on backing up Microsoft 365 is blunt about this: test the entire backup, not a subset or a spot check, because synchronisation problems and dependencies between systems are often unknown until a full restore is attempted.
It is also worth knowing what Microsoft 365 does and does not do for you. The recycle bin, version history and retention policies will get back a file someone deleted last week. They are not the same as a backup you can lean on after ransomware, after a departed staff member's mailbox is purged, or after a deletion nobody noticed for a year.
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