How Darktrace’s AI caught two Microsoft 365 account takeovers


By: Dan Fein, 8th June 2020

‘Social engineering’. ‘Credential theft’. ‘Account takeover’. If you were a fly on the wall of a Security Operations Center in 2020, you would have heard these phrases far more often than ‘banking trojan’, ‘SQL injection’ or ‘exploit kit’. The reason for this is simple – the reality for most security teams now is that their perimeter has shifted into the cloud. Identities are being attacked more than devices.

‘Microsoft 365 account compromise’ is the current favorite, with 29% of organizations reporting a related incident in one month alone. Security teams struggle with these attacks because the evidence needed to detect them is scattered across the enterprise: they begin via email, are executed over the network, and progress in the cloud. This broad and spread out digital footprint means that following the breadcrumbs is not easy.

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