Most Hackers are successful not because they have unknown methods of breaking into other computers, but because most end-users of computers and organizations make common and basic mistakes. Here are the most common mistakes everyone should avoid:
Updates to Microsoft and Apple products are free. All you need is internet access and a bit of time to download and install the updates. Most users ignore the update popup and continue to use the computer. Always update all your devices, apps, applications, operating systems, and computers.
Another issue that is similar to the above is keeping older versions of the software. Most developers only maintain the latest version of the particular application. Most users keep older versions to avoid buying a newer version. Just remember that the older application could be a vector for an intrusion into your systems.
Downloading random applications online is another threat. There are so many download sites that you need to ensure that any program you download is from a known developer. Also, when you download known applications, always do so from the official site. Third-party download sites often add Malware and Adware to downloads before making them available.
In a recent study, security researchers found that almost 90% of pirated software came with Malware. The offending Malware was written into the applications, making it impossible to remove. Saving a few bucks by downloading a pirated applications might open your computer up to Malware and even Ransomware.