The Black Basta hacking group is using a new tactic to target Microsoft users: 'Microsoft fatigue'. They flood victims' inboxes with spam emails, then impersonate IT support via Microsoft Teams to gain access to their accounts. This technique combines the common exploitation of user fatigue with two-factor authentication notifications and group communication tools.
all hitting the headlines. You could almost call this security warning fatigue, but now hackers are relying upon another kind of Microsoft fatigue to ensure they can steal your account credentials. Here’s what you need to know about the latest Black Basta email-overload campaign.
The new threat campaign, Chatzimangou said, “involves email bombing followed by a Teams chat with the victim, posing as Help Desk or IT support.” It’s as ingenious as it is nasty and effective. The attack cleverly employs the tactic of bombing the user’s email inbox with spam emails; in this campaign, it would appear that newsletter subscription notifications are being employed.
The Black Basta hackers create a new Microsoft 365 tenant which poses as a legitimate-looking support organization. A one-on-one chat session, using Microsoft Teams from that newly established tenant, is initiated in order to offer the recipient of this spam assistance in resolving the issue.
BLACK BASTA EMAIL BOMBING MICROSOFT TEAMS SECURITY WARNINGS SPAM FATIGUE
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