Latest cybersecurity reporting from selected sources.

A Chinese APT is going where most APTs don't: deep into the cloud, compromising supply chains and deploying uncommon malware.

Google on Wednesday disclosed that the Chinese state-sponsored threat actor known as APT41 leveraged a malware called TOUGHPROGRESS that uses Google Calendar for command-and-control (C2)

Evidence Mounts for Chinese Hacking 'Quartermaster'A probable Chinese nation-state threat actor compromised Visual Studio Code and Microsoft Azure cloud infrastructure to target Western technology firms for espionage, security firms Tinexta Cyber and SentinelLabs said. The companies call the campaign "Operation Digital Eye."

A government entity and a religious organization in Taiwan were the target of a China-linked threat actor known as Evasive Panda that infected them with a previously undocumented post-compromise toolset codenamed CloudScout

Beijing's Tough-to-Track Mesh Networks Built Using Hacked Devices, Mandiant WarnsMultiple Chinese cyber espionage groups, including Volt Typhoon, are using operational relay box networks, aka ORBs, built using leased proxy servers and compromised or end-of-life routers, to avoid detection and complicate efforts to track their activities, warns Google Cloud's Mandiant.

CISA calls for 'fundamental, security-focused reforms' to happen ASAP, delaying work on other software A review of the June 2023 attack on Microsoft's Exchange Online hosted email service – which saw accounts used by senior US officials compromised by a China-linked group called "Storm-0558" – has found that the incident would have been preventable save for Microsoft's lax infosec culture and sub-par cloud security precautions.…

CISA calls for 'fundamental, security-focused reforms' to happen ASAP, delaying work on other software A review of the June 2023 attack on Microsoft's Exchange Online hosted email service – which saw accounts used by senior US officials compromised by a China-linked group called "Storm-0558" – has found that the incident would have been preventable save for Microsoft's lax infosec culture and sub-par cloud security precautions.…

The Microsoft consumer signing key stolen by Storm-0558 Chinese hackers provided them with access far beyond the Exchange Online and Outlook.com accounts that Redmond said were compromised, according to Wiz security researchers. [...]

The Microsoft private encryption key stolen by Storm-0558 Chinese hackers provided them with access far beyond the Exchange Online and Outlook.com accounts that Redmond said were compromised, according to Wiz security researchers. [...]

Chinese hackers used a zero-day exploit for a critical-severity vulnerability in Sophos Firewall to compromise a company and breach cloud-hosted web servers operated by the victim. [...]