About 100 organisations breached in attacks exploiting SharePoint Server vulnerabilities
About 100 organisations were affected by attacks targeting vulnerabilities in Microsoft SharePoint Server. Following the US government, the energy sector and universities, a breach at the US agency that manages nuclear weapons also came to light. Microsoft and the US Cybersecurity and Infrastructure Security Agency (CISA) warned of attacks targeting on-premises SharePoint servers, and some of the attacks were linked to China-linked groups.
Key facts
- Affected organisation
- Being confirmed
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- About 100 organisations breached
- Cause / method
- Exploitation of vulnerabilities in on-premises SharePoint servers
- Location
- Other countries
If your data was exposed
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.
Timeline
- Damage to about 100 organisations from SharePoint server attacks came to light, and Microsoft and CISA issued warnings.
- Some of the attacks were linked to China-linked groups.
- The SharePoint hack of the US agency that manages nuclear weapons came to light.
- It emerged that Microsoft had cut ties with China in connection with a leak of security information related to SharePoint servers.
Also affected by this incident
US National Nuclear Security Administration breached via Microsoft SharePoint hack
↳ Knock-on damage from another organisation’s incident · View original incidentThe US National Nuclear Security Administration (NNSA), the agency that manages US nuclear weapons, was breached through a Microsoft SharePoint hack, raising national security concerns. The attack was attributed to China-based cyber-attackers; the specific scale of the damage and the response have not been confirmed.
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The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.