Technopedia

2)PASSWORD CRACKING

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3)BRUTEFORCE ATTACK

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4)PHYSING ATTACK

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5)TROJON ATTACK

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6)WINDOWS HACKING

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7)WIRELESS HACKING

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A flash drive is one of the single most useful tools a person can own. With it you can back up critical data, transport large files, rescue a malware-infested PC, and even run an entire operating system.

Regarding this last option, awhile back I explained how to put Windows 8 on a flash drive. (It works with Windows 7, too.) Today, let's talk about putting Linux on a flash drive.

Why would you want to do that? Two reasons: to see how the other half lives, so to speak, and to create a rescue tool that can work around nearly any Windows-related disaster.

For example, I recently spent days troubleshooting a relative's malware-infested, effectively non-operational laptop. She wasn't concerned about getting the system working again, but she desperately wanted to retrieve her business documents, personal photos, and the like. (I did not, you'll be glad to know, take the opportunity to scold her about making backups. I waited until later.)

Just because Windows is hosed doesn't mean you can't access the files on your hard drive. By booting Linux from a flash drive, you get a full-blown operating system, one that can read the main drive and, usually, copy its contents somewhere safe (like the cloud, an external hard drive, or even a network drive).

Okay, but you don't have a master's degree in programming, so how are you supposed to create this mythical Linux boot drive? It's easier than you might think thanks to an open-source utility called UNetbootin.

The beauty of this tool is that it does everything for you (except supply the flash drive - I recommend something like the Kingston DataTraveler 108 8GB drive).

Just download and run the program, then choose a Linux distribution (i.e. a version of Linux) or, if you already have one, an ISO file. I think most people will opt for the former, at which point UNetbootin downloads Linux for you, then copies it to your flash drive (and makes the drive bootable).

(If you're new to Linux, I recommend choosing Ubuntu - though readers may have other ideas as to which distribution is the most user-friendly.)

Reboot with your drive still inserted and presto: Linux should load. (You may need to monkey with your BIOS or boot settings so that the flash drive is at the top of the order.)

Keep in mind that this won't overwrite anything on your hard drive; the OS runs exclusively from the flash drive. When you're done, you can just shut down, remove the drive, then boot back into Windows normally.

But I recommend familiarising yourself with that Linux environment, just so you're prepared if and when you need to use it for rescue purposes. Plus, it's kind of fun!

Unfortunately, most apps created for smartphones or tablets aren't available for use on a PC. Some apps let you sync favourites or other personal data with a companion program or a somewhat equivalent application on a PC, but mobile apps and their PC counterparts are rarely the same.

Thankfully, BlueStacks recently released an alpha version of what the company calls an app player, a PC program that enables users to download Android apps directly or transfer them from an Android-based smartphone or tablet to their PC. The BlueStacks app player essentially runs an instance of Android in a virtualised environment on the PC, so the apps act as though they're running on a mobile device. If that's something you'd like to try, here's how to set it up.

Getting started with BlueStacks

Using the BlueStacks app player is relatively straightforward, but there are some quirks involved with getting apps from a mobile device to a PC which we'll go into a little later. To use the BlueStacks app player, you must first download it from theBlueStacks website. Then run the BlueStacks app player installation file, and follow the on-screen prompts to complete the installation. Keep in mind that the BlueStacks app player is still in the early phases of development, so you can expect some minor performance issues and perhaps a bug or two.

When the installation is complete, you'll see a short video describing how the BlueStacks app player works and how you can access a few key features. Though the video doesn't offer a ton of information, it's worth watching to ease your learning curve. The BlueStacks app player isn't terribly intrusive: It requires minimal space and consumes few system resources; but it does launch automatically with your PC, and it displays a status icon in the system tray. The app also connects automatically to BlueStacks servers. If you prefer not to have the player launch every time your PC boots up, you can disable the BlueStacks launcher via the Startup tab in the MSCONFIG tool (to access the tool, select Run from the Start menu, type msconfig and press Enter).

Once you've installed the BlueStacks app player and configured it to your liking, you can start using the app player with the handful of apps pre-installed in it or with the few apps available for download within the BlueStacks 'Add more apps' channel. To access the downloadable apps however, you'll have to register for a free BlueStacks account with either a working email address or a Facebook account. The main allure of the BlueStacks app player is its ability to send apps from your Android device to your PC via the company's Cloud Connect mobile app and servers.

Transferring your Android apps to your PC

To use the Cloud Connect mobile app to transfer Android apps from your mobile device to your PC, you have to know your BlueStacks PIN. When you register an e-mail address or Facebook account with the BlueStacks app player, the service will link a personal identification number (PIN) to your account. This PIN appears as soon as you register, as well as when you click the 'Cloud Connect' link within the 'Get More Apps' tool in the BlueStacks app player.

To transfer apps from your Android device, launch the Android Market on your Android tablet or smartphone, and search for BlueStacks Cloud Connect. Download and install the Cloud Connect app on your phone or tablet; don't worry, it's only 402KB. With that app in place, you can send any other app that's installed on your mobile device to the BlueStacks app player on your PC. Essentially, the Cloud Connect app uploads selected apps from your phone to BlueStacks' servers, where your PC can then access and download them to your PC.

To use BlueStacks Cloud Connect, simply launch the app and select all of the Android apps on your device that you'd like to upload for transfer to your PC. Then click the Sync button at the top of the interface, and wait for the apps to upload (all of the apps installed on the mobile device will be listed). The uploaded apps should be visible in the BlueStacks app player on your PC when you launch the 'Get More Apps' tool.

Note that sometimes the BlueStacks app player doesn't sync properly if it's already open on your PC when the Cloud Connect app on your mobile device uploads data. We found during testing that, when this issue arose, restarting the BlueStacks app player always resolved it.

Once your apps are uploaded and the app player has notified you that they're available, select Get More Apps from your BlueStacks app player's PC client and click the Cloud Connect link. From there, a screen should pop up that lists all of the apps you uploaded from your mobile device. Click the Subscribe button underneath each app, and you should be able to run your favourite Android apps from the app player on your PC.

                                                  

IPhone users love to brag about their phones. They line up around the block and stand in line for hours when a new one is released. Yet, for many users, Android is clearly the superior platform. Yes, its Achilles' heel is a big one: security. Android's openness and large market share mean that it's a juicy target for attackers.

Yet, Android's openness also provides serious benefits. It allows for more customisation; its apps are usually cheaper and various handset manufacturers are able to offer significantly different form factors, such as the smartphone-tablet hybrid, the Samsung Galaxy Note.

With a little tweaking, you can speed up and optimise Android in ways that will make iPhone users' heads spin. Here are 10 ways to make Android faster, more productive and more secure than iPhone:

1. Get a better browser

One of the major benefits of using the popular browser Opera Mini is that its cloud engine compresses data by as much as 90%. It features tabbed browsing, support for widgets and the ability to set advanced privacy features, such as the ability to automatically clear passwords, cookies and browsing history.

The advantage for Android users: the ability to use Opera Mobile instead of Opera Mini. Opera Mobile supports Flash and 3D graphics, has an HTML 5 engine and has a device-side web rendering engine for higher fidelity browsing. You can set up the rendering engine to work locally when on a Wi-Fi network and default to the cloud-based rendering engine when on a 3G or 4G network to minimize expensive data usage (if you're not on an all-you-can-eat data plan). It also allows you to access your camera from your browser. Expect cool new widgets to start using this feature soon.

2. Install an Android optimiser

Apps like Android Booster and Android Assistant give you the power to automatically kill apps that run in the background, gobbling up battery life and draining CPU. You can set a monthly data limit and monitor exactly how much data you've downloaded over 3G and 4G networks, and you can purge your cache, history, etc.

3. Conserve your battery

Nothing slows you down more than a dead battery. One advantage Android phones have over iPhones is that you can swap out your battery. But proper power management can save you from that trouble. Apps like JuiceDefender and Battery Stretch help you regulate your power use.

With more than 7 million downloads, JuiceDefender is the most popular of these apps. It offers three different profiles: "Balanced," "Aggressive" or "Extreme."

The Balanced setting is the default and requires no configuration on your part. If you bump it up to "Aggressive," the app will automatically disable data connections when the battery is low. If you're really worried about a dead battery, the "Extreme" setting disables data connections by default. You can turn them back on manually, and you are able to whitelist apps that you want to have connectivity.

4. Dig deeper into which apps hog data

If you constantly go over your data limits, an app like Android Assistant may not be enough. Sure, you will be alerted when you are nearing your limit, but what exactly is causing the problem?

Is it Facebook, podcasting software, the MLB Gameday app? Who knows?

Well, with Onavo you can find out. The main menu displays statistics on your data use over the prior month, and it fingers the apps hogging the most bandwidth. Many of these are obvious, such as any video or streaming app, but I was surprised to see how much data Google Calendar used with its constant synching, and after consulting with Onavo, I decided to synch less frequently

You'll also discover the apps that go online even when they haven't been launched. Don't be surprised to see that many games do this, so if you haven't played them in a while, you might want to get rid of them. Otherwise, those free Android games may end up costing you money if they push you over your data limit.

For international travelers, Onavo can help you avoid (or limit) costly data roaming charges.

And Onavo is actually an app that has more octane on iPhone, for which it will also compress data. (On Android, this feature is currently limited to Ice Cream Sandwich users.)

5. Tether your phone

So you've signed up for an expensive all-you-can-eat data plan, yet when you try to tether your laptop to your phone to use that 4G connection you paid a premium for, you are stymied. Carriers will try to charge you $20 or $30 a month for tethering privileges, meaning they're trying to charge you twice for network access that you've really already purchased.

For most people, this is more of a nuisance than anything. Wi-Fi is available everywhere, but if you are using your laptop for business, wouldn't it be smarter to stay on a 4G network rather than connecting to an open Wi-Fi one?

On iPhone, tethering is a no-go. On Android, tethering may technically violate your user license, but you can do it, and you no longer need to root your phone. Apps like Clockworkmod'sTether will have you up and running in a few minutes.

Tether isn't a free app, but at $4.99 (approximately £3.10), one stay in a hotel that still charges for Wi-Fi will make this app a no-brainer.

6. Pick your own keyboard

Siri has been getting all kinds of press lately, and, sure, it can be amusing to try to get Siri to say off-color things. Yet, when I'm using data on my phone, I prefer text-based input.

For years, one of the main reasons I've considered iPhone inferior is its hostility to apps like Swype. On Android, you have the ability to choose your own keyboard. (Well, iPhone users can jailbreak their phones to get Swype, but that fact reinforces my point.)

Many Android phones come with Swype pre-loaded, but it's not usually the default keyboard. Just press any text entry area for a few seconds and a menu will pop up. Select "Input method" and then choose "Swype." That's it.

I used to avoid texting like the plague because I hated entering data on my phone. That all changed with Swype, which lets you drag your finger across the screen from letter to letter. Its predictive engine figures out what word you are going for (it gets better the more you use it), and you just keep chugging along.

I can't Swype as fast as I type, but I'm a fast typist. Scroll around the Inter-webs a bit, and you'll find plenty of people claiming to achieve 40 or 50 words per minute with Swype. And now that Swype has been acquired by Nuance, you should have even more input options coming your way soon.

7. Turn on screen lock, but don't use a pattern

The easiest screen unlocking method is to trace a pattern on your screen. It's easier and more convenient than entering a PIN or password. However, if you lose your phone or it is stolen, you better hope you just cleaned your screen.

The oil on your finger will leave a distinct pattern on your screen. Unless you wipe it down religiously after each unlocking, the pattern lock will only deter the stupidest criminals.

8. Install anti-virus software

Why have you not done this already? Malware writers are flocking to Android. We're seeing much of what happened in the desktop world being repeated with smartphones. Android is more open, has a larger market share and is a juicer target.

IPhone is a closed ecosystem and may eventually, like Mac, benefit from security through obscurity (though I doubt iPhone will ever shrink to Mac-like numbers). For iPhone users, this is good-news, bad-news scenario. Yes, Apple does more to lock down apps and prevent third-party software from exploiting key system resources, but you are trusting one company for your security. If Apple screws up, all iPhone users are in trouble. Exhibit A: the Path privacy fiasco.

Android, on the other hand, may be less secure due to its openness, but it's welcoming to third-party security tools. There's no excuse not to have anti-virus software on your phone. There are plenty of free options, such as Lookout, and with a simple download, you can significantly reduce your risks. Most of these antivirus apps also allow you to remotely lock and wipe your phone if it is lost or stolen, and some even allow you to set off an obnoxious alarm, which will either help you find the device if its tucked behind a couch cushion or convince a thief to toss it.

Of course, we'd like to see handset OEMs and the carriers bake antivirus into their various Android versions. It's a simple step that would benefit them, carriers especially, saving bandwidth, protecting against fraudulent charges and so on. We would also like to see carriers adopt network-based mobile malware scanning, such as the solution from KindsightSecurity Labs.

9. Stay away from App Stores you do not know

Google has taken steps to tame the Wild West that was its Market. It now has a "Bouncer" that scans the Market for malware, and despite what Apple apologists may claim, Android was designed from the get-go to make malware less disruptive on phones than it is on PCs by sandboxing apps and forcing apps to ask for permissions (yes, the same permissions that everyone just ignores, but at least they tried).

The trouble is that Android users can download apps anywhere. Don't be lured into doing this. If you aren't using Android Market, make sure you are in a store you know and trust, such as Amazon. Most Android models come with the default setting that doesn't allow you to download apps from "unknown sources." If you've fallen for social-engineering attacks in the past, it's best to leave that box checked.

When you download an app, try to get into the practice of checking permissions. If a game wants to send out text messages, for instance, that should be a red flag.

10. Stay away from mobile payments

Mobile payments are starting to take off, especially in Europe and Asia, and consumers should be wary. The problem with mobile payments is that they are often simply added to your mobile phone bill, and if you find a suspicious charge, your liability will vary from carrier to carrier.

In contrast, if a hacker gets your credit card number and goes on a spending spree, your maximum liability for credit card fraud is £50. In other words, credit card fraud is not your problem, it's the bank's. Until you have that level of protection for mobile payments, it's probably smarter and safer to stick with the credit card.