Right now, you are in a battle to protect yourself and your family from hackers, and there is no white knight on horseback galloping to your rescue. Most of the so-called "experts" in the yellow pages are upstarts who, in most cases, know just as much as you about the problem but compensate by using virus scan programs that offer the illusion of expertise. Most computers have boilerplate antivirus software and perhaps some sort of firewall, but this is hardly enough to thwart malicious hackers from breaching your system.
The weakest link in cybersecurity is the human factor. You'll get an email that looks like it's from your boss or child's school, you'll click the link, and in microseconds your computer is contaminated with a virus that incapacitates your PC and you realize you've just been pwned!
Not all hackers are bad, but those who have malicious intent are typically categorized as script kiddies, hacktivists, mercenaries, or state sponsored. Each group carries with it a different motivation, target to breach, and data it seeks to exfiltrate. Script kiddies will typically wreak sporadic techno-chaos using cut-and-paste scripting methods from content they find on deep web hacker forums. Hacktivists usually target organizations of affiliates who are aligned with other organizations and affiliates that this category of hacker-activists deem ethically or economically corrupt or sided with the wrong side of group ideology.
Mercenary hackers will typically be part of a criminal enterprise that seeks financial gain for its activity and can work for crime syndicates or state sponsors. And finally, state-sponsored hackers will work for a government and target specific organizations and data for espionage and political motivation.