Malware One of the biggest threats to cybersecurity is malware, which damages or disables computers. You can unknowingly download malware by clicking on suspicious links and pop-up advertisements, or by opening suspicious email attachments. There are many types of malware, including viruses, adware, ransomware, and spyware. This malware could infect your computer; spread to other computers; show you unwanted advertisements; lock up your device; and even capture personal information stored on your device.
Phishing Phishing occurs when a scam artist sends an email pretending to be a trusted organization. For example, a scammer might pretend to be your bank, using the bank’s logo. When reading emails, be sure to look for red flags. Messages may contain grammar errors or spelling mistakes. Additionally, the web address may be similar to a legitimate company, organization, or government agency, but not exact. Scammers often create imposter websites to trick you into revealing personal information to untrusted sources.
Remote Access Remote access occurs when you allow someone in another location to gain access into your computer. Some scammers pose as technical support companies and try to convince you to let them “fix” your computer by accessing it remotely through special software and/or websites. However, once they gain access, the scammer may install malware or hold the computer “hostage” until you send money to regain control.
source: http://www.ohioattorneygeneral.gov/Individuals-and-Families/Consumers/Cyber-Safety/Cybersecurity