Confirmed1 source articles · Official disclosure checkedUpdated 5 Nov 2026
Aesto Data Security Incident
Data breach1 source
What happened
Aesto, LLC experienced a network security incident on or about December 18, 2025, that impacted a limited portion of their Amazon Web Services infrastructure. According to a reported statement,
AI summary of accepted evidence. Check the original sources for the full context.
Reported impact
An affected population has not been established in the accepted evidence.
- Discovery date
- 26 May 2026
- Data access
- accessed
Source evidence
1Read the original reporting and statements. Multiple articles may rely on the same underlying source.
California Attorney General01
Organization notification filed with California Attorney General
Retrieved 5 Nov 2026
On or about December 18, 2025, Aesto experienced a network security incident that impacted a limited portion of their Amazon Web Services infrastructure.
Attributed reporting
2 more excerpts
After an extensive forensic investigation and manual document review, on May 26, 2026, Aesto confirmed that between on or about December 2, 2025, and December 18, 2025, a limited amount of your protected health information pertaining to Together Women’s Health LLC, which was stored within Aesto’s network, may have been accessed and/or acquired by an unauthorized actor.
Attributed reporting
Aesto confirmed that between on or about December 2, 2025, and December 18, 2025, a limited amount of your protected health information pertaining to Together Women’s Health LLC, which was stored within Aesto’s network, may have been accessed and/or acquired by an unauthorized actor.
Attributed reporting
Updates and corrections
All times UTCRevision 2
Data access revised
Revision 1
Incident published