Macworld:

You may not need to read this column for yourself, but read it nonetheless and help those with less wariness take better heed: Don’t download software for OS X from anywhere but the developer’s own website or Apple. Period.

But the experience last week of a user noticing that a download of Skype from MacUpdate was wrapped in an installer that contained adware and trialware reminds me to run the flag up the pole again to remind folks who weren’t aware—and to ask all of you who understand the issue to help your friends, colleagues, and family avoid these risks.

We old-timers remember the days of lots of sites to download software. Sadly, those days are long gone. Tell your friends and family about this article and warn them about downloading software from any place other than the Mac App Store or the developer’s own web site.