It has viruses and spyware that gets installed on your computers,phones,or mobile devices without your consent. Criminals use malware to steal personal info,send spam commit fraud .
Stop using online activities that involve user password or other personal info update your security software and run it to scan your computer for viruses and spyware. Get ride of anything it identifies as a problem
Don't open attachments in email unless you know who sent it and what it is. Don't download and install software from websites that you don't know about.
TIPS * Keep your security software updated * back up your data regularly * If your computer slows down, crashes, or won't shut down, you may have malware