Question

which rule should be followed to stay safe online

Answer 1

Always use add blockers.

Always ask a parent before visiting a website unknown.

Create Firewalls.

Keep up to date.

Use one of these^^

Answer 2

Answer:

Don't download files or programs from unknown sources.

Explanation:

A rule that you should follow to stay safe online is to avoid downloading any type of files or programs from unknown sources as you may get a virus on your computer or you might give acess to a hacker to all your information. Because of that, you should only download files or programs from sources that you know that are reliable and always have your antivirus updated.