Microsoft Defender for Endpoint leaves some Linux boxes defenseless after update
The separate FIPS installation problem is fixed in version 101.26052.0011 and later. Microsoft has an unfortunate habit of shipping broken updates for its flagship operating system, Windows. An update that breaks software specifically designed to protect a device takes things to another level, particularly given the relentless rise in attacks and the need to both fend them off and monitor activity.
- ▪The separate FIPS installation problem is fixed in version 101.26052.0011 and later.
- ▪Microsoft has an unfortunate habit of shipping broken updates for its flagship operating system, Windows.
- ▪An update that breaks software specifically designed to protect a device takes things to another level, particularly given the relentless rise in attacks and the need to both fend them off and monitor activity.
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Record
| Original publisher | The Register |
| Canonical URL | https://www.theregister.com/patches/2026/07/27/microsoft-defender-for-endpoint-leaves-some-linux-boxes-defenseless-after-update/5278914 |
| Publication time | Mon, 27 Jul 2026 15:45:00 +0200 |
| Retrieval time | 2026-07-27T13:51:21.235Z |
| Last seen | 2026-07-27T13:51:21.235Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | PhaDrrtD7vdf · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
(function() { let windowUrl = window.location.href; windowUrl = windowUrl.substring(windowUrl.indexOf('?') + 1); let messageElement = document.querySelector('.shareableMessage'); if (windowUrl && windowUrl.includes('code') && windowUrl.includes('expires')) { messageElement.style.display = 'block'; } })(); PATCHES Microsoft Defender for Endpoint leaves some Linux boxes defenseless after update One bug disabled the security service on restart, another blocked installation on hardened RHEL systems Richard Speed Richard Speed MICROSOFT ECOSYSTEM REPORTER Published mon 27 Jul 2026 // 14:45 UTC Not content with broken Windows updates, Microsoft has disclosed two problems with Defender for Endpoint on Linux – one that could disable the security service after a reboot, and another that prevents…
Excerpt limited to ~120 words for fair-use compliance. The full article is at The Register.
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