Technology Article

Hackers Use Compromised ConnectWise Credential to Sign In to 173 Microsoft 365 Tenants

Attackers used a compromised ConnectWise Cloud Backup credential for unauthorized sign-ins across 173 Microsoft 365 tenants.

Hardware & Devices2 min readOctober 17, 2026

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Published by Internet. Curated by SixByte Technologies.

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Hackers Use Compromised ConnectWise Credential to Sign In to 173 Microsoft 365 Tenants
Hardware & Devices Internet
The Hacker News 2 min readOctober 17, 2026

Attackers used a compromised ConnectWise Cloud Backup credential for unauthorized sign-ins across 173 Microsoft 365 tenants.

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 … [+8512 chars]

This report is sourced from Internet. You can read the full original publication directly at the official source.

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