Mandiant controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
2026
MyMichigan Health investigates cyberattack claims
Company response
MyMichigan Health stated that it is investigating a group's claim that it stole data. According to the organization, the investigation has so far found no unauthorized system access or compromise of patient information. MyMichigan Health also hired Mandiant to help assess the claims. The event was reported on October 16, 2026.
MyMichigan Health says it is investigating a group's claim that it stole data, has found no unauthorized system access or compromise of patient information so far, and hired Mandiant to help assess the claims.
Company response
Investigation — MyMichigan Health
The health system began investigating immediately, and it hired Mandiant, an independent cybersecurity incident response firm, and is working with law enforcement to assess the claims.
Source excerpt
A group calling itself MetaEncryptor claims it stole data from MyMichigan Health, but the health system says the group has offered no proof, including sample files.
MyMichigan Health says its investigation so far has found no unauthorized access to its systems and no compromise of patient information.
The health system began investigating immediately, and it hired Mandiant, an independent cybersecurity incident response firm, and is working with law enforcement to assess the claims.