There are a lot of reasons to make sure that your laptop stays secure -- both from a physical perspective as well as a software/data perspective. From the physical side, laptop theft isn't generally considered a positive event -- at least from the victim's perspective. From the data side of the equation, however, losing the wrong laptop can cost your company much more than the cost of laptop. Imagine the public relations fallout if your company loses a laptop containing private information about all of your customers.

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Encrypt the hard drive

Scenario: You're in the airport and you lose your laptop or it's stolen. Said laptop contains your entire customer database along with personal information about each of them. Voila! Instant public relations incident -- except it is not the kind of PR that you want. Protect yourself from this kind of problem by encrypting your laptop's hard drive.
If you're using Windows Vista, consider using Vista's BitLocker drive encryption software. If you're using Windows XP or another operating system, there are a number of third party full-disk encryption products available on the market.
Although you can use EFS (Encrypting File System) to achieve a similar goal, full disk encryption provides better protection as everything on your disk gets protected and you don't have to worry about saving files to a particular location.

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Install tracking software

Protecting data is extremely important but if your laptop is lost or stolen, you probably want it back. To this end, install software on your computer that tracks its location should it ever be lost or stolen. Most laptop theft recovery software installs to an undetectable location on the laptop and the software cannot be erased from the system.
Each time the computer connects to the Internet, it reports in with the software manufacturer. In the event that the computer is reported to the recovery software company as stolen or missing, the company tracks down the physical location of the laptop and then notifies the authorities. In many cases, the hardware is actually recovered. However, even if the laptop is recovered, you can't be sure that the thief didn't compromise your data.
Some tracking software includes the ability to remotely delete information from the laptop as well. This feature can be a lifesaver if a laptop with sensitive information is stolen. With this capability, you'll be able to delete potentially sensitive information before it falls into the wrong hands.

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Install antivirus and antispyware software

The two pronged antivirus/antispyware software blaster will do far more to protect your assets than a single application that handles only virus-busting. These days, spyware is probably a worse problem for many organizations then viruses were in their heyday. Many spyware infestations install keylogging software and other kinds of monitoring software designed to gain access to private information. Laptops can be especially vulnerable to spyware since they often spend time outside the organization’s protective firewalls.

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Tie down the machine with a lock (hardware or software)

Even those employees that are issued laptops don't always carry them every place they go. As such, there are times when laptops are sitting in employees offices, in hotel rooms, at home, etc. There are numerous documented cases of laptops containing sensitive information being stolen from homes, airports, hotels, and even people's offices. If you're traveling or using a laptop at home, consider taking a security cable and lock (such as a Kensington lock/cable combination) with you that you can wrap around a table leg. Although a solution like this will not completely prevent laptop theft, most thieves go after easy targets. Any roadblock you can put up will deter would-be thieves.

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Install a software firewall

A software firewall goes a long way toward protecting a system. Such software keeps unwanted traffic away from your computer. However, not every system necessarily needs a software firewall. If you need to pick target systems on which a software firewall will be used, seriously consider laptops in your plans.
As I mentioned before, laptop computers often spend time outside your company firewall, meaning that they lose the important protection of those devices. Especially if you're out in the wild using an unsecured wireless network, a firewall will help to keep your computer from being subject to attack.

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Use a strong password

Passwords remain the most common way to secure resources, including laptop computers. Again, since laptops are often in the wild, it becomes even more important to use a strong password to lessen the risk that a local account is compromised. Make sure that all local accounts are appropriately secured, including the local Administrator account.

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Use wireless networks carefully

Wireless networks are everywhere. In most of these cases, even though you often have to sign up to use the connection, the wireless service is insecure meaning that anyone within range of your laptop can pick up everything you see, do and type. Obviously, this is not good.
If you're working from one of these locations and find it necessary to work on something sensitive, try to connect to your organization's VPN service and do your work via that connection instead. With the right kind of VPN in place, traffic between your laptop and your organization's network will be encrypted. If information security is a critical concern, only use wireless networks that are secured with WPA or WPA2. This isn't a perfect solution, but is much better than using only WEP.

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Disable Windows services you don't need

Every service that runs on your laptop increases the attack surface of your computer, especially services that listen on particular ports. To help further protect a roving laptop, disable any services that you don't need to do your job.

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Make sure your laptop is insured

This one is easy: When all else fails and your laptop is stolen, you will probably need to replace it.

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5 Essential laptop security tips

Laptop theft is a huge problem. It is common nowadays to use a laptop to get work done away from your home or office. Unfortunately, the mobility and technology that make laptops so valuable also make them the target for theft around the world.

If your laptop is stolen, company information can be exposed, as well as your personal information can lead to identity theft. In this hack, we’ll show you 5 essential tips to learn how you can keep your laptop more secure.

1: Never leave any passwords in your laptop case. If you do keep your passwords with your laptop, it’s much like keeping the keys in your car. Remember that without your passwords, it will be more difficult to unlock your computer and access your personal information.

2: Laptop theft is a crime of opportunity. Always take your laptop with you, and always keep your eye on it. For instance, if you’re meeting someone, lock your laptop in the trunk and make sure it’s stored out of the sight. Further more, try not to leave your laptop in an accessible area, such as your hotel’s front desk. If you do have a safe or a security cable, use it.

3: Have sensitive data? Encrypt it. If someone gets your laptop and gains access to your files, encryption can give you an extra layer of protection. Programs such as TrueCrypt make the job very easy. Windows users can use Encrypted File System (EFS) to encrypt files and folders.

4: Password protect your systems. Every laptop user should protect their laptop with startup passwords. Set a BIOS password to lock the system before the operating system even starts. Windows users can set a password to start Windows. Remember that startup passwords will prohibit any access to the computer at all.

Make sure you choose a good password - make it a long one and complex. Only hard-to-guess passwords will prevent thieves from guessing your password. If your laptop supports biometric authentication, you should use your fingerprint in place of a password.

5: If the worse happens, and your laptop does get stolen, wouldn’t it be great if you could trace it? There are companies that offer tracking software, allowing the stolen laptop to send its location Unfortunately, those programs work only when the stolen laptop connects to the Internet..

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KiruthikaSambandam