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Cyber security news, as it breaks.

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Published
Source
The Hacker News
Filed under
Microsoft, Attacks

Cybersecurity researchers are sounding the alarm related to an active campaign in which unknown threat actors are abusing a compromised Microsoft 365 (M365) credential belonging to ConnectWise Cloud Backup (formerly SkyKick) to gain unauthorized access to customers' M365 environments. ConnectWise Cloud Backup is a cloud-based backup and recovery service built for managed service providers (MSPs…

Originally reported byThe Hacker NewsRead the full story on The Hacker News (opens in a new tab)

Practical steps for any organisation

  • Patch quickly, starting with anything facing the internet.
  • Use multi-factor authentication everywhere it is offered.
  • Keep tested, offline backups – and a plan for the day you need them.

Defender’s notebook

The attacker technique behind this story, in MITRE’s terms – and what to check in your own estate.

© 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation.

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