Why the threat of a ‘nightmare’ Chinese supercomputer just got a step closer

A cyber security official at the US State Department had noticed something unusual. An internal IT security system, nicknamed “Big Yellow Taxi”, had flagged unusual activity on its corporate Microsoft account. The tech team quickly raised its concerns to Microsoft, Read More …

Storm-0558: Understanding How Microsoft Failed to Protect Itself

You’re undoubtedly familiar with the so-called Storm-0558 attacks from July 2023. If not a quick recap: these attacks (widely attributed as the work of the Chinese government) compromised a number of high-value Exchange Online mailboxes, including the US Secretary of Read More …

Analysis of Storm-0558 techniques for unauthorized email access

As described in more detail in our July 11 blogs, Storm-0558 is a China-based threat actor with espionage objectives. Beginning May 15, 2023, Storm-0558 used forged authentication tokens to access user email from approximately 25 organizations, including government agencies and Read More …