Unpatched Java is to blame in more than 50 percent of these cases. Common culprits include unpatched Adobe Acrobat, Windows, and so on. The other big risk is from users installing an app they shouldn’t, such as a fake antivirus scanner. Companies typically spend their time and money on defenses that ignore the obvious risks, says security expert John Defterios. He says most companies, even when they’ve been breached and their reputation has been ruined, fail to fight malicious hacking correctly.”]
Source: https://www.csoonline.com/article/2614630/your-guide-to-becoming-a-true-security-hero.html