Spyware can be downloaded from Web sites, email messages, instant messages, and from direct file-sharing connections.Additionally, a user may unknowingly receive spyware by accepting an End User License Agreement from a software program.
How Do You Know You Need Anti spyware
Spyware frequently attempts to remain unnoticed, either by actively hiding or by simply not making its presence on a system known to the user
What To Do: Anti-spyware Protection
Use Antivirus to provide anti-spyware protection and proactively protect from other security risks Configure the firewall in Norton Internet Security to block unsolicited requests for outbound communication.Do not accept or open suspicious error dialog’s from within the browser.Spyware may come as part of a “free deal” offer – do not accept free deals.Always read carefully the End User License agreement at Install time and cancel if other “programs” are being installed as part of the desired program Keep software and security patches up to date.
How Do I Avoid Spyware?
Be selective about what you download to your computer.
Read licensing agreement.
Watch out for anti-spyware scams.
Beware of clickable ads.
Keep your Internet browser up to date Scan your computer often
Courtesy :- Symantec