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Buggy Google Chrome Update Behind Recent Unbootable Macs

A wave of reported Macs being no longer able to boot was caused by a recent Google Chrome update that was corrupting a necessary operating system folder. Once the update was installed, affected users found they were no longer able to boot into macOS. [...]

https://www.bleepingcomputer.com/news/security/buggy-google-chrome-update-behind-recent-unbootable-macs/
Botnet Uses Recent vBulletin Exploit to Block Other Hackers

A botnet has been detected utilizing the recently disclosed vBulletin exploit to secure vulnerable servers so that they cannot be used by other attackers. This allows the botnet to grow their army of compromised servers without fear that other attackers will utilize the same server. [...]

https://www.bleepingcomputer.com/news/security/botnet-uses-recent-vbulletin-exploit-to-block-other-hackers/
Outlook on the Web to Block File Extensions for PowerShell, Python, and More

Microsoft will soon be blocking an additional 38 file extension from being downloaded as attachments in Outlook on the Web in order to protect users from malicious files. These additional extensions includes files used by Java, PowerShell, Python, and various vulnerabilities. [...]

https://www.bleepingcomputer.com/news/microsoft/outlook-on-the-web-to-block-file-extensions-for-powershell-python-and-more/
Cisco Fixes Critical IOx Flaw Allowing Root Access to Guest OS

Cisco has released security updates to address a critical vulnerability in the IOx application environment for Cisco IOS Software that could enable authenticated remote attackers to access the Guest Operating System (Guest OS) as the root user. [...]

https://www.bleepingcomputer.com/news/security/cisco-fixes-critical-iox-flaw-allowing-root-access-to-guest-os/
Microsoft Spots Nodersok Malware Campaign That Zombifies PCs

A new fileless malicious campaign, dubbed Nodersok by Microsoft Defender ATP Research Team researchers who discovered it, drops its own LOLBins to infect Windows computers with a Node.js-based malware that will turn the devices into proxies. [...]

https://www.bleepingcomputer.com/news/security/microsoft-spots-nodersok-malware-campaign-that-zombifies-pcs/
Office 365 to Get Automated Incident Response for Hacked Accounts

Microsoft is currently working on adding a new Automated Incident Response playbook to Office 365 Advanced Threat Protection (ATP) to allow Security Operations (SecOps) teams to automatically investigate and remediate hacked accounts. [...]

https://www.bleepingcomputer.com/news/microsoft/office-365-to-get-automated-incident-response-for-hacked-accounts/