Outdated applications and OSes are magnets for malware, since they often have known vulnerabilities that can only be fixed by upgrading. If you see a new version is available, install it right away. Some platforms, such as Apple iOS, even allow you to automatically schedule security updates so you don’t miss a crucial change.

Ads and pop-ups frequently ask that you install a new program or update. They might make their case by insisting a common application – such as Adobe Flash Player – is outdated. Phishing emails sometimes take similar approaches to get you to download an attachment. Don’t fall for them; avoid installing anything unless you intended […]