Quest Diagnostics says Quanum LSM access exposed patient records
The lab learned of the access on October 21, has not named the data types, and found no group claiming the attack.
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Victim
Quest Diagnostics
- Mentions · 7d7
- Mentions · 30d7
- All mentions7
- First seenOct 23, 2026
- Last mentioned2d ago
Timeline
7 articles · newest firstQuest Diagnostics confirms patient data taken in Quanum breach
Quest says the Wednesday attack hit Quanum and took some protected health information; the number of patients is unstated.
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Quest Diagnostics warns of possible patient data theft after lab system attack
Quanum Lab Services Manager was taken offline Thursday; Quest expects it back Friday and says other operations were not hit.
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Quest Diagnostics says unauthorized party may have seen Quanum records
The October 21 Form 8-K does not say how many patients were affected or whether records were taken.
66
AINews 'Black October' roundup clusters AI-linked security disclosures
The digest says many incidents were found earlier and disclosed together, while exploitation scale is disputed.
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Quest Diagnostics reports breach of Quanum Lab Services Manager
The company says certain patient records were likely accessed, but the number of patients and record types are still unknown.
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Quest Diagnostics suspends Quanum LSM after unauthorized access
Quest found the intrusion on October 21 and confirmed patient information was involved, without stating how many people.
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Appears with
- Quest Diagnosticsvendor · 4
- Quanum Lab Services Managerproduct · 3
- Quanum LSMproduct · 2
- U.S. Securities and Exchange Commissionorganization · 2
- GitLabvendor · 1
- Claudeai model · 1
- METRorganization · 1
- PHP Foundationorganization · 1
- ARTEXmalware · 1
- ConnectWisevictim · 1
- LiteLLMproduct · 1
- Redwood Researchorganization · 1
- Anthropicvendor · 1
- Quanumproduct · 1
- Quanum eLabsproduct · 1
- NGINXproduct · 1
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