The most common type of computer data security is encryption. Many software options exist (TrueCrypt, SafeBit) that can encrypt the data on your computer so only authorized people can access it. For physical data security (for example, to help prevent a laptop from being swiped), many electronic retailers (BestBuy, Staples) sell laptop locks.
Barracuda Networks is a great online website that offers to store security data. They have a great easy to use website for individuals looking to protect their data.
There are a number of places where one could find information on verifying DMI pool data, particularly online. Some websites with information are Computer Hope and Bleeping Computer.
Trend Micro, Web Root, Cyber Security, On Guard Online, Corero, and Norton all offer additional information about home security as well as offer free and paid computer security.
If a computer ever receives data from any source outside the computer or provides data to an outside recipient - computer security is needed. Since that includes the operator at the keyboard, that means just about every computer needs security. A few devices that have internal computers built into them which receive no outside data and supply no data outside of the device MIGHT get away with no security - but even there some security would be prudent to prevent malicious reprogramming of the internal computer. When computers were being developed, the main goal was just to get them to work, not to make them "secure". As a consequence there are a lot of avenues to attack computers. The question is not so much IF a computer needs security - it is more a question of HOW MUCH security the computer needs. The degree of security a computer ought to have depends on how valuable the information on the computer is, how critical it is to protect the information from being divulged to unauthorized persons, how important it is that the information remain unaltered (You don't want errors in the data in the computers of the bank where you have an account), how important it is to be able to prove someone sent or received data (for example you want there to be proof that you sent your electronic payments and for the recipients to not be able to deny that they received them), and how critical it is to be able to get data into a computer or out of it when you want to (Any student who had their computer crash just as they were about to print out their term paper can sympathize with this one - just knowing the paper is stored on the computer doesn't help you if you can't get it out. If you include computers that run life support systems, you can see that there are even more critical systems that need to be protected such that they continue to function no matter what).
One can find information on hiring a security officer by inquiring their past employers, (seeking out references) and looking through data bases with track records of individual employees.
To find information on how to recover data from a hard drive, one should visit the webpage 'Popular Mechanics'. One could also get help from a computer specialist.
RSA is an American computer and network security company which is a division of EMC Corporation. You can find more information on the official EMC website or on wikipedia.
The ability to have rar on the computer adds security and speed. RAR is an archive file format that supports data compression to save space and memory and error recovery to restore data after having problems.
PCI Data Security Standards are important when someone is conducting business online. To find more information on security standards you can look to the McAfee website or go directly to the PCI Security Standards Council website.
"First, do a search on your computer for lost data. If you can't find it, then unfortunately, unless you've stored your date on an external hard drive or something other than the crashed computer, your data has been lost forever."
There are a few places where one can seek advice on network and data security. This includes contacting data security experts as well as asking on forums dedicated to the topic.
CA Internet Security is a program that one can download to keep their computer safe from viruses and spyware. It can be downloaded online from a website that provides the service.