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Mile Bluff security event disrupts phone, computer and healthcare services

Mile Bluff Medical Center reported a security event on April 21, 2026 involving data encryption that impaired phone and computer systems. Some services were limited or temporarily interrupted, and clinical teams used downtime procedures while patient care continued. Public information established material operational disruption but did not establish a specific ransomware mechanism.

65

Estimated severity

65 / 100

93

Source reliability

93 / 100

Approximate Date

2026-04-21

Targeted Company

MILE BLUFF MEDICAL CENTER

Targeted Company Supply Chain Impact

  1. Distribution & Fulfillment

  2. Procurement & Sourcing

  3. Production & Manufacturing

  4. Sales (Retail & Ecommerce)

  5. Warehousing

  6. Service Delivery

  7. Unrecognized Impact

Supply Chain Relations

No information

Geographic Impact

Country Targeted Company

United States

USA

Other Affected Countries

No other affected countries reported

Target country

United States

Affected countries

United States

Impacted regions

Wisconsin · United States

Operational Impact

Duration

No information

Financial impact (USD M)

No information

Impact types

Operational disruptionService degradation

Affected sectors

Healthcare & Public Health

Affected departments

Information Technology

Attack Profile

Attack types

No information

Attributed threat actors

No information

Sources

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