--- title: "About the Acronis SDI update for protection against MDS-Intel vulnerabilities — ZEBR.ai" description: "It has not been long since a new class of Intel processor vulnerabilities was uncovered. Collectively, they are called MDS, or Microarchitectural Data Sampling, and by exploiting gaps in Hyper-Threading technology—a technology exclusive to Intel chips that is intended to improve their speed and performance—these vulnerabilities allow hackers to read data between neighboring processes.…" url: "https://zebr.ai/en/blog/about-the-acronis-sdi-update-for-protection-against-mds-intel-vulnerabilities" markdown_url: "https://zebr.ai/en/blog/about-the-acronis-sdi-update-for-protection-against-mds-intel-vulnerabilities.md" language: "en" published: "2019-06-18T06:38:28+00:00" alternates: cs: "https://zebr.ai/cs/blog/o-aktualizaci-acronis-sdi-k-ochrane-proti-mds-intel-zranitelnostem.md" sl: "https://zebr.ai/sl/blog/o-posodobitvi-acronis-sdi-za-zascito-pred-ranljivostmi-mds-intel.md" sk: "https://zebr.ai/sk/blog/o-aktualizacii-acronis-sdi-na-ochranu-proti-zranitelnostiam-mds-intel.md" hr: "https://zebr.ai/hr/blog/o-azuriranju-acronis-sdi-za-zastitu-od-mds-intel-ranjivosti.md" sr-Latn: "https://zebr.ai/sr-latn/blog/o-azuriranju-acronis-sdi-za-zastitu-od-mds-intel-ranjivosti.md" bs: "https://zebr.ai/bs/blog/o-azuriranju-acronis-sdi-ja-za-zastitu-od-mds-intel-ranjivosti.md" sq: "https://zebr.ai/sq/blog/per-perditesimin-e-acronis-sdi-per-mbrojtje-kunder-cenueshmerive-mds-intel.md" fr: "https://zebr.ai/fr/blog/a-propos-de-la-mise-a-jour-acronis-sdi-pour-la-protection-contre-les-vulnerabilites-mds-d-intel.md" es: "https://zebr.ai/es/blog/acerca-de-la-actualizacion-de-acronis-sdi-para-la-proteccion-contra-vulnerabilidades-mds-de-intel.md" de: "https://zebr.ai/de/blog/ueber-das-acronis-sdi-update-zum-schutz-vor-mds-intel-schwachstellen.md" pt-BR: "https://zebr.ai/pt-br/blog/sobre-a-atualizacao-do-acronis-sdi-para-protecao-contra-vulnerabilidades-mds-da-intel.md" pl: "https://zebr.ai/pl/blog/o-aktualizacji-acronis-sdi-chroniacej-przed-lukami-mds-intel.md" it: "https://zebr.ai/it/blog/aggiornamento-di-acronis-sdi-per-la-protezione-dalle-vulnerabilita-mds-intel.md" nl: "https://zebr.ai/nl/blog/over-de-acronis-sdi-update-ter-bescherming-tegen-mds-intel-kwetsbaarheden.md" hu: "https://zebr.ai/hu/blog/az-acronis-sdi-frissiteserol-az-mds-intel-serulekenysegekkel-szembeni-vedelemhez.md" ro: "https://zebr.ai/ro/blog/despre-actualizarea-acronis-sdi-pentru-protectia-impotriva-vulnerabilitatilor-mds-intel.md" tr: "https://zebr.ai/tr/blog/mds-intel-guvenlik-aciklarina-karsi-koruma-icin-acronis-sdi-guncellemesi-hakkinda.md" id: "https://zebr.ai/id/blog/tentang-pembaruan-acronis-sdi-untuk-perlindungan-terhadap-kerentanan-mds-intel.md" --- [Home](https://zebr.ai/en/) [Blog](https://zebr.ai/en/blog) About the Acronis SDI update for protection against MDS-Intel vulnerabilities # About the Acronis SDI update for protection against MDS-Intel vulnerabilities It has not been long since a new class of Intel processor vulnerabilities was uncovered. Collectively, they are called MDS, or Microarchitectural Data Sampling, and by exploiting gaps in Hyper-Threading technology—a technology exclusive to Intel chips that is intended to improve their speed and performance—these vulnerabilities allow hackers to read data between neighboring processes.… 18/06/2019 · 3 min read · ZEBR.ai editorial team It has not been long since a new class of Intel processor vulnerabilities was uncovered. Collectively, they are called MDS, or Microarchitectural Data Sampling, and by exploiting gaps in Hyper-Threading technology—a technology exclusive to Intel chips that is intended to improve their speed and performance—these vulnerabilities allow hackers to read data between neighboring processes. In other words, they make it possible to use a malicious application or virtual machine to read otherwise inaccessible and secure data from the CPU. What makes this class of vulnerabilities unique? The MDS bug [affects the vast majority of Intel processors](https://www.intel.com/content/www/us/en/architecture-and-technology/mds.html) manufactured since 2011. This also put Acronis Software-Defined Infrastructure at risk. Fortunately, immediately after the disclosure, Acronis developed a patch and updated SDI, so your data will not be at risk—once you install the update. [More about Acronis Software-Defined Architecture](https://www.zebra.cz/produkt/acronis-storage/) ### Mitigating MDS vulnerabilities The Acronis SDI update has been available since May 22 and can be accessed easily through Settings and Updates in your control panel. After selecting the update ([Build 2.5U7-16502](https://www.acronis.com/en-us/support/updates/changes.html?p=39439)), a system restart will be required to complete it. Updated nodes will automatically reboot one after another. However, it should be noted that the only way to completely prevent all possible exploitation of MDS vulnerabilities is to disable Hyper-Threading technology. Put simply, it works by using two logical processors instead of a single physical one—and MDS vulnerabilities exploit this duplication by listening to data on one processor from the other. Unfortunately, disabling Hyper-Threading technology will negatively affect processor performance, to an extent that depends on the specific model. You therefore need to consider whether you work with sensitive data on the system and how critical the system itself is to your business—whether you have a legitimate reason to sacrifice what may be a substantial portion of performance for the sake of perfect security. If so, Hyper-Threading can be found and disabled in the BIOS under the name SMT, or the technology can be disabled by adding “nosmt” to the kernel boot parameter in the GRUB configuration file. ### Keep your system and data secure Shortly after MDS vulnerabilities were described, instructions for exploiting them began appearing in rapidly spreading mass malware strains. Alongside the familiar Meltdown and Spectre vulnerabilities, which incidentally work on a similar principle to MDS, darknet forums also began filling with links to RIDL, Fallout and Zombieload—the code names of individual MDS vulnerabilities. The pace of modern technology development is relentless, and efforts to solve one problem often lead to a range of new problems. These may be small and insignificant, but they can also threaten your privacy, the authenticity of your data, access to it and ultimately your entire business. Not only ordinary data loss, but also these random and all the more critical challenges, are at the center of attention for Acronis—they are an inseparable part of our mission: to protect your data, applications and systems with effective, secure and easy-to-use cyber protection solutions. For these services to be truly effective and secure, Acronis must respond quickly when the hardware on which our solutions run is compromised. And in the case of MDS vulnerabilities, your data has been secure since the update was deployed. Source: Article author: ZEBR.ai editorial team Read on ## More related articles [All articles](https://zebr.ai/en/blog) ### [ZEBR.AI: N-able introduces shadow AI identification into its UEM and security solutions](https://zebr.ai/en/blog/zebr-ai-n-able-introduces-shadow-ai-identification-into-its-uem-and-security-solutions) New capabilities provide visibility into the use of AI tools across all endpoints and networks by individual identities, without the need for additional agents or infrastructure 28/09/2026 · 3 min read ### [Acronis: Ransomware can halt production even without attacking PLC systems](https://zebr.ai/en/blog/acronis-ransomware-can-halt-production-even-without-attacking-plc-systems) For manufacturing companies, ransomware is not just a matter of IT security, but a matter of production continuity 23/09/2026 · 3 min read ### [GFI Archiver AI simplifies integration with GFI KerioConnect](https://zebr.ai/en/blog/gfi-archiver-ai-simplifies-integration-with-gfi-kerioconnect) Direct integration of both products makes working with corporate emails easier, improves mail server performance, and enables more effective compliance with regulations 21/09/2026 · 2 min read Contact ## Do you need a solution for yourself or for your client? 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