Swiss government says SharePoint-linked data breach affected hundreds of accounts

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  • Swiss government confirms attackers breached BIT’s SharePoint servers
  • Investigators suspect exploitation of recent SharePoint flaws
  • No sensitive or confidential data is believed to have been stored on the platform

Cybercriminals broke into the IT network of the Swiss government and stole data from roughly 200 accounts. As a result, the Swiss government disconnected some of its servers from the wider internet and launched an investigation.

In an announcement, the Swiss government said that on July 28 2026 its security specialists noticed “abnormalities” in the Federal Office for Information Technology and Telecommunication’s (BIT) SharePoint servers.

Three days later, on July 31, the investigators determined that the attackers accessed data found in around 200 accounts, both user and technical.

Two vulnerabilities

The investigation is currently ongoing, the agency said, adding that it is getting support from Microsoft, as well. So far, the identity of the attackers is unknown, and the stolen...

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