Office 365: A Favorite for Cyberattack Persistence

Threat actors are consistently leveraging legitimate services and tools from within Microsoft Office 365 to pilfer sensitive data and launch phishing, ransomware, and other attacks across corporate networks from a persistent position inside the cloud-based suite, new research has found. Office 365 user account takeover – particularly during the COVID-19 pandemic with so many working from home – is one of the most effective ways for an attacker to gain a foothold in an organization’s network, said Chris Morales, head of security analytics at Vectra AI.

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