# Epic AI Test Finds Untraceable Patient Data Access

> Epic's AI security test exposed hidden patient data access flaws in MyChart setups.
- Title: Epic AI Test Finds Untraceable Patient Data Access · Pymnts
- Summary: Epic's AI security test exposed hidden patient data access flaws in MyChart setups. Epic's AI test found untraceable patient data access risks in MyChart…
- Keywords: epic, mychart, anthropic, claudemythos, securityflaws, healthcare, databreaches, business, finance, Test, Finds, Untraceable
- Source: Pymnts — https://pymnts.com/news/artificial-intelligence/2026/epics-ai-security-test-exposes-untraceable-patient-data-access
- Author: PYMNTS
- Published: 2026-10-08T22:30:06+00:00
- Read time: 1 min
- Topics: epic, mychart, anthropic, claudemythos, securityflaws, healthcare, databreaches, business, finance
## AI Security Test Finds Hidden Risk
Epic's AI test turned up MyChart setups that could let outsiders read patient records without showing up in audit logs.

> Epic Systems found flaws in certain MyChart configurations that could let someone view patient records without the access appearing in an audit trail
## Security Work Ahead of New Features
Epic shifted engineers off product development for about six weeks to close security gaps.

> Judy Faulkner, Epic's founder and CEO, told Modern Healthcare the work would likely take about six weeks
## Patching Takes Two Weeks Per Fix
Fixing security flaws takes about two weeks each, with over 10,000 serious flaws found in one month.

> Anthropic reported 50 Glasswing partners found more than 10,000 high- or critical-severity vulnerabilities in the program's first month
## MyChart Supports 320 Million Records
MyChart supports more than 320 million patient records across U.S. hospitals and doctors' offices.

> MyChart supports more than 320 million patient records across U.S. hospitals and doctors' offices
## AI Finds Older Flaws Too
Mythos found a 27-year-old flaw in OpenBSD and a 16-year-old flaw in FFmpeg video software.

> Mythos found a 27-year-old flaw in the OpenBSD operating system, according to Anthropic
## Healthcare Breaches Cost $6.64m
Healthcare breaches cost an average of $6.64 million, the highest of any industry for the 13th straight year.

> Healthcare breaches cost an average of $6.64 million, the highest of any industry for the 13th straight year
## Key takeaway

Epic's AI test found untraceable patient data access risks in MyChart configurations that could let outsiders view records without audit trails.