Apple has published a security advisory, highlighting a vulnerability in one of it products listed below on the 27th of October 2021. It is recommended that you take the necessary precautions by ensuring your products are always updated.
Safari versions prior 15.1
For more information on this Apple update, you can follow this URL:
https://support.apple.com/en-ca/HT212875
The Guyana National CIRT recommends that users and administrators review this update and apply it where necessary.
PDF Download: Apple Security Advisory.pdf
References
Apple security advisory (27th October 2021). Retrieved from Apple.
https://support.apple.com/en-ca/HT212875
Apple security advisory (28th October 2021). Retrieved from Canadian Centre for Cyber Security.
https://www.cyber.gc.ca/en/alerts/apple-security-advisory-45