Skip to content

Get notified

Get an email when a new major security incident drops. No spam, unsubscribe any time.

Only used for pwn.watch incident emails. Protected by Cloudflare Turnstile.

Become a sponsor

One slot: pwn.watch, gifs.so, flavors.design, kitze.io, every kitze repo, and an X shout-out.

Secure checkout on Polar. Right after paying you set up your ad on kitze.io.

LiveUnratedNo fix neededBreaches & attacks

University Hospitals (Cleveland) takes systems offline after "unusual activity" (unconfirmed)

University Hospitals (Cleveland, Ohio) IT systems

University Hospitals in Cleveland detected unusual activity on its servers on Oct 22 2026 and disconnected systems from the internet as a precaution. MyChart, the public website and other digital services went down and some appointments and elective procedures were rescheduled; UH says patient care continues. UH has not said whether it was a cyberattack or whether patient data was accessed, and expects disruption into the following week. Still under investigation.

Why this severity: Unconfirmed: suspected cyber incident under investigation; no data access confirmed

Started
Oct 22, 2026

Follow this incident

Affected

  • University Hospitals digital services (MyChart, website)

Fixed in

No fixed release yet

Timeline2

  1. MyChart and websites remain down; some appointments are rescheduled; UH begins reconnecting some partners and expects impact into next week. Cause not confirmed.

  2. UH detects unusual activity on its servers and disconnects systems from the internet.

News & write-ups3

Notes & caveats

Unconfirmed and still being investigated: UH has not called it a cyberattack and has not reported data access. Update or close once UH says more.

Get an email when a new major security incident drops. No spam, unsubscribe any time.