Perhaps the most misunderstood PC invader are web cookies. What are they? Are they dangerous? How can users protect their PCs?
A cookie is actually a term for a small packet of information saved as a text file on a PC. A new cookie is created every time a PC’s web browser visits a new website. The cookies are created to contain information specific to that website. Preferences, shopping cart contents, authentication information, server based session identifiers, and many other things compose cookie contents.
They are used as part of an unseen information exchange. Each time a web browser visits a website, a cookie is created or adapted. Its contents are used as a sort of passport, getting a virtual stamp each time they visit someplace. Some have expiration dates, others don’t. Many are harmless, some are not.
Because they are text files, cookies are ultimately passive. They are not executable programs, and therefore they are not viruses. However, depending upon the mechanisms individual web browsers use to create and access cookies, some cookies act as gateways to harmful programs.
Most cookies can be deleted, a few cannot. The longest lived cookies are known as evercookies. Like strains of the flu resistant to medical aid, these cookies resist being deleted. Multiple copies of an evercookie are stored across different files. One copy can be deleted, but the rest remain, holding their information until it can be accessed.
Another difficult to excise cookie is the zombie cookie. Perhaps zombie is too strong an adjective. These cookies don’t shamble about howling for “Brains!” Instead, they are not content to be killed. When deleted, it is recreated from storage areas outside the web browser’s normal cookie storage locations. While many authentic and reliable sites use zombie cookies, including Google, Hulu, and ESPN, zombie cookies have also been misused.
The problem is: all cookies track computer activity. An unscrupulous party can use cookies to breach privacy. Cookies can also pave the way for malware. Malware or pestware are catchy terms for malicious software. These are executable programs designed to lurk in a PC and to perform actions without the user’s awareness or consent. Malware often gets onto machines through email attachments or website downloads. The latter is where cookies can work against a PC. During the information exchange, sometimes unseen files will execute and infect a computer. Even the simple act of canceling a page can result in the downloading of malicious software.
With so much going on without your knowledge, how can you keep your personal computer safe? Use of the best possible anti-spyware software. This is no easy feat. There are hundreds of anti-spyware packages and ratings sites. Information conflicts about what is a valuable package and what is not. Affordability, quality, and reliability are equally important factors. Informed consumers try to gather all possible information before surrendering their money. Unproven and unfamiliar websites can use bogus ratings to mislead users into buying inferior and affiliated products. The wisest consumer always heeds the reference source as well as the ratings.
By listening to the best references, a user can find the programs that actually delivers valuable service. PC World, PC Magazine, CNET, PC Pro Magazine, PC Authority, PC Utilities, PC Advisor, and Microdatorn award spyware routines with Editors Choice awards. Test laboratories across the United States, the United Kingdom, Sweden, Germany, and Australia also offer recommendations.
Spyware Doctor has received consistent accolades from these sources. Millions of users trust Spyware Doctor to safeguard their PC, and this number is growing every day.
Spyware Doctor uses a two front, fully automated plan to protect your PC at all entry points. It runs a thorough scan to determine if any spyware, malware, or tracking cookies are already present on the device. Then, it reacts to these threats, taking the necessary steps to remove them. However, the software also takes proactive steps to keep dangerous cookies and malware from entering your computer’s vulnerable files at all. Spyware Doctor often recognizes and deals with threats faster than any other software.
Don’t let even passive files open the danger floodgates in your PC. Use quality anti-spyware software like Spyware Doctor today.