This vulnerability was so critical that Apple has to remove the FaceTime group chat before resolving the issue in the next iOS update.

Google experienced difficulties on a large scale for it’s online services, such as YouTube, Google Meet, Google Maps, Google Calendar.

Microsoft has released the security patches for recently discovered 58 security flaws as it’s final patch Tuesday for 2020. With these patches, the total number of CVE has reached 1250 for this year.

These vulnerabilities were found in the FontParser and Kernel of iOS. Allowing the attacker to remotely execute the arbitrary code with kernel-level benefits.

Cisco on 4 November 2020 revealed a zero-day vulnerability of publicly accessible proof-of-concept exploit code in the Cisco AnyConnect Secure Mobility Client Software.