malware from opening acoustic tractor article Answered
A few minutes ago, and immediately after I opened the acoustic tractor article on my phone I got a notification from 'Loaildo.info.lp/lp3?... saying that my phone would be locked within 1 day if I did not immediately download their 'Android Launcher update'.
I suspect the article or the site has been compromised.
Not sure what to make of this but I will not be opening anything from Instructables on my Android again.