The Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday said it discovered several recent successful cyberattacks against the cloud services of multiple organizations, offering guidance on how security teams can bolster associated security.   

CISA said in its report that threat actors have used a variety of tactics and techniques—including phishing, brute force login attempts, and possibly a so-called “pass-the-cookie” attack that bypassed multifactor authentication to exploit cloud security weaknesses.

The agency does not explicitly tie these activities to any one threat group, nor are they specifically associated with the advanced persistent threat actor attributed to the SolarWinds attack.

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