Unrated Medical device recall · FDA · Published April 20, 2021

Elekta MOSAIC Oncology System Versions 2.62-2.83 Recalled Due to Malware Risk

Elekta recalls specific versions of its MOSAIC Oncology Information System (2.62, 2.64, 2.70, 2.81, 2.82, 2.83) hosted on Classic Cloud due to malware vulnerability. Affected users should check their version numbers and contact support.

Plain-English summary generated from official FDA data by GovInfoNow · Published by Carlos Caban · How we make summaries

🇺🇸 FDA recall #Z-1783-2021Medical device Elekta ›

Recall notice

Malware attack

Take action

Contact the company

Recalling firmElekta, Inc.400 Perimeter Center Ter NE Ste 50 · Atlanta, GA 30346-1227

✎ GovInfoNow plain-language explainer

Elekta is recalling specific versions of its MOSAIC Oncology Information System software that were hosted on Classic Cloud. This recall is due to a malware vulnerability that could allow unauthorized access to patient data. Read more at govinfonow.com/recall/62761-elekta-mosaic-oncology-system-versions-2-62-2-83-recalled.

Source Summary by GovInfoNow · govinfonow.com/recall/62761-elekta-mosaic-oncology-system-versions-2-62-2-83-recalled · Updated August 19, 2026 · FDA enforcement record: FDA #Z-1783-2021

Cite this page

“Elekta MOSAIC Oncology System Versions 2.62-2.83 Recalled Due to Malware Risk.” GovInfoNow, updated August 19, 2026. https://govinfonow.com/recall/62761-elekta-mosaic-oncology-system-versions-2-62-2-83-recalled. Based on FDA recall #Z-1783-2021 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-1783-2021%22&limit=1).

The FDA announced on April 20, 2021, that Elekta, Inc. is recalling its MOSAIC Oncology Information System versions 2.62 through 2.83 hosted on Classic Cloud due to a malware attack hazard. The agency classified the recall as Class II.

How to tell if you have it

Elekta MOSAIC Oncology Information System
Versions: 2.62, 2.64, 2.70, 2.81, 2.82, and 2.83
Hosted on Classic Cloud
v2.62 - no UDI
v2.64 - 00858164002091
v2.70 - 00858164002237
v2.81 - 00858164002282
v2.82 - 00858164002336
v2.83 - 00858164002367

The hazard

The recall addresses a malware attack affecting the specified software versions. The FDA listed the hazard as a malware attack in the official record.

Context

GovInfoNow's records show Elekta, Inc. has 39 other recalls on record since June 19, 2017. Other recent recalls of similar products include GE Medical Systems Centricity Universal Viewer Software Cybersecurity Recall (Jan. 30, 2026), Edan Central Monitoring System Recall (Oct. 24, 2025), and Edan Diagnostics Patient Monitor Recall (Oct. 24, 2025).

How to tell if you have this one

Check your Elekta MOSAIC Oncology Information System version number. Affected versions include 2.62, 2.64, 2.70, 2.81, 2.82, and 2.83 hosted on Classic Cloud. Each version has a unique identifier listed in the recall notice.

Brand
Elekta
Category
Medical device

Based on the official FDA remedy

What to do — step by step

Check Your Version
Identify your Elekta MOSAIC Oncology Information System version number to see if it is one of the affected versions (2.62, 2.64, 2.70, 2.81, 2.82, or 2.83).

Where it went and when

Where it was distributed

Distributed nationwide.

FDA distribution: “Nationwide” States read from FDA’s own wording; “not listed” means the notice does not name it.

Distributed nationwide.

Recall timeline

FDA terminated this recall 21 months after the firm started it.

Apr 20, 2021Firm started the recall
Jun 2, 2021FDA classified it Class II
Jun 9, 2021Published in FDA’s Enforcement Report
Jan 17, 2023FDA terminated the recall

Dates from the agency record only; steps without a date are left out.

Similar recalls

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Keep exploring

More Elekta recalls

Link to this recall

<a href="https://govinfonow.com/recall/62761-elekta-mosaic-oncology-system-versions-2-62-2-83-recalled">Elekta MOSAIC Oncology System Versions 2.62-2.83 Recalled Due to Malware Risk (GovInfoNow)</a>

Where this comes from

The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.

Official source: FDA Recall #Z-1783-2021 (April 20, 2021) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-1783-2021 to see it in context.
Plain-language summary written by qwen3:4b on August 19, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.