Keep your computer current with the latest patches and updates.
One of the best ways to keep cyber attackers away from your computer is to apply patches and other software fixes when they become available. By regularly updating your computer, you block attackers from being able to take advantage of software flaws (vulnerabilities) that they could otherwise use to break into your system.
While keeping your computer up to date will not protect you from all attacks, it makes it much more difficult for hackers to gain access to your system, blocks many basic and automated attacks completely, and might be enough to discourage a less-determined attacker to look for a more vulnerable computer elsewhere.
Most companies release software that can be configured to download and apply updates automatically so that you do not have to remember to check for the latest software. Taking advantage of "auto-update" features in your software is a great start toward keeping yourself safe online.