Major online Bible sites have been hacked.
James Bible online: https://www.kingjamesbibleonline.org has been hacked but the .me version still works: https://www.kingjamesbible.me
Biblehub: https://biblehub.com has been hacked
Are there any other 'free' online sources that are really good and easily navigable?
On this topic, beware of Bible apps on your phones. They are near the top of the list of apps that are intrusive and will cross app track and some have been accused of using microphone and camera.
User agreements are long and boring but worth a skim through to make sure you aren't agreeing to things you're not willing to put up with.
Source: Trust me Bro! I'll see if I can find an article about it.
Edit - every article I can find is from 2015-2019, maybe they have cleaned them up since then. I don't have one on my phone so I really don't worry about it.
I remember a few years ago https://www.biblegateway.com was having issues. People were complaining about passages omitted, or not reading correctly so I have avoided that one completely since then. I have no idea if the issues still persist.
I do not enroll/subscribe to any online Bible sites. Any more, when any web site pops up with captcha's or cookies I just click out of there.