I'm suspicious it could be the programmer I hired in India as I gave him ftp access as well as my server pasword to do a few changes to my site.
How can I know for sure if he's inserting his adsense code at certain times of the day? And how can I prevent this from happening?
ps I'm not technically savvy
UPDATE: I just noticed the text title changed back to blue color. Something is definitely up because my adsense earnings goes up when its blue color but when its black my earnings doesn't budge