Apple Users

Updates will show up in the app store app, and those are checked by Apple.

The point is to never install an "update" from a web page, unless you are 100% sure the web page belongs to the developers, and never click on links in emails. But some links in emails are real. Telling them apart is not easy. Here are some tips.

https://www.nicva.org/article/tips-and-tools-to-check-links-in-emails-without-clicking
Tips and tools to check links in emails without clicking

Despite knowing all the perils of spam, phishing and malware-laden emails you will still get one that looks fairly good but you are rightfully suspicious and cautious of the content. What can you do to check for yourself?
short version:
7. If in doubt, don't click!

Note: Apple sends out notices of upgrades (these are changes to the operating system). They should show up in System Settings, and with a red dot on the icon. These can be trusted. Same for apps installed through the app store. They will show up under the Apple menu and in the Settings App as updates to apps.



When in doubt ask a friend or ask here on DU.