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Sala de archivo con estanterías metálicas llenas de cajas de cartón y una caja sacada a medias del estante
8 min read

Microsoft 365 Archive is coming to retention policies: compliance up, availability down

This autumn, a Purview retention policy will be able to move SharePoint files into the cold tier (roadmap 561208: preview in September, GA in October). Microsoft promises cost, compliance and search; its own documentation adds that archived content is "no longer directly accessible to anyone" and lists the apps that break: Word and PowerPoint online, the mobile apps, the macOS sync client and Office builds not updated since March. A reactivated file cannot be archived again for 120 days.

Cajón abierto de un fichero de tarjetas de archivo de madera en una sala de oficina, con las fichas de papel apretadas y vistas de canto
8 min read

Some people have not been able to search in Microsoft 365 since Monday. For the SLA, that is not downtime

Incident MO1456424 has been open since Monday 17 August: some Microsoft 365 users get nothing back when they search in SharePoint Online, OneDrive and Outlook. Files still open, mail still flows, and that is why the availability counter does not move. What Microsoft's advisory says word for word, why its SLA definitions of downtime leave exactly this out, and which check you need so that you find out before your users do.

Estante metálico de una sala técnica con una fila de cartuchos de cinta en sus cajas y una unidad de cinta montada en rack
9 min read

The Microsoft 365 backup that never leaves Microsoft

Microsoft 365 Backup restores a SharePoint site in under twenty minutes, costs $0.15 per protected GB per month and keeps a year of restore points. Its own documentation also says the data never crosses the Microsoft 365 trust boundary, that the storage is append-only rather than immutable, and that deleting the backups is not blocked. Which scenario that covers, which it does not, and the two new dependencies that appear the day you switch it on.

Pasillo de un archivo lleno de cajas y carpetas: el SharePoint local de una empresa guarda sus documentos igual, y desde el 14 de julio ya no recibe arreglos
8 min read

Your SharePoint 2016 got its last patch on 14 July

CVE-2026-55040 lets an attacker with no credentials impersonate any user or administrator of an on-premises SharePoint. Microsoft fixed it on 14 July 2026: exactly the day SharePoint Server 2016 and 2019 went out of support. The proof of concept went public on 12 August and was seen in use the same day, but KEVintel's sensors date the first attempt to 19 July, twenty-four days earlier. Why asking whether it should have been published is the wrong argument, and what to check today on a server that will not receive any more fixes.

Fichero de archivo de madera con un cajón abierto lleno de tarjetas catalogadas: dónde vive de verdad cada documento y quién puede abrir el cajón

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min read

That recording lives in the OneDrive of someone who no longer works here

At the end of September, Microsoft moves whiteboards created in Teams channels out of the creator's OneDrive and into the channel's SharePoint site. It is a small change that concedes a large problem: much of a company's collective work lives inside one individual's personal account. Where each recording actually lands, why the deletion clock starts the day you delete the account rather than the day the person leaves, and why leaving the account blocked "just in case" is not the plan you think it is.

La nueva retención por último acceso de Microsoft Purview borra ficheros de SharePoint y OneDrive y deja 93 días de papelera como único margen
7 min read

What nobody opens gets deleted: Purview, last accessed, and the 93 days to notice

By mid-August 2026 Microsoft finishes rolling out a Purview retention rule that deletes SharePoint and OneDrive files nobody has opened for a given period, justified on the grounds that Copilot will answer better. It deletes nothing on its own: somebody has to configure it. But it is the first deletion trigger that measures not a property of the document but the absence of human activity, and the file nobody opens in three years may well be the one you need in year four. What is actually shipping, the 93 recycle-bin days that are your only margin, why version history will not save you, and what we would do before touching that button.

SharePoint 2016/2019
Unsupported since Jul 14; no ESU
8 min read

SharePoint 2016 and 2019 just ran out of patches, and this time there's no extension you can pay for

On July 14 SharePoint Server 2016 and 2019 fell out of extended support, and Microsoft offers no ESU: there is no paid extension. A year ago ToolShell compromised over 400 organizations attacking on-prem SharePoint that was still receiving patches. The three real ways out, and the fourth one almost nobody offers you.

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