Prying Eyes: A Primer for Responsible Social Networking

Read time (bolded) – 5 minutes

Read time (comprehensive) – 8 minutes

 

We’ve all heard the chatter: murmurs about a teenage girl losing her job because of a Facebook status update, or some guy calling in sick to work, only to have his (dated) fishing trip photos making the rounds on Flickr.

As social network users, we have to be aware that someone is ALWAYS watching. Whether it is our friends, casual acquaintances, colleagues, or complete strangers, when content is published on a social network, someone will see it.

As we’ve done previously, using real world analogies can help us understand just how online behavior can affect our lives.

Around close friends, people we know on a personal level, we probably feel most comfortable. Maybe we can cut loose a little bit, say what’s really on our mind, maybe engage in some behavior that could be embarrassing if seen by the wrong eyes. Likewise, most of try to keep profanity under wraps in the workplace or don’t feel the need to share the weekend’s exploits with our least favorite supervisor.

The same thing is true in the world of social networks. Just as we choose the appropriate time and place to vocalize certain thoughts or ideas (often based on setting or people in the room), we have to do the same online

This kind of discretion on social networking sites is generally accomplished through a balance of privacy settings, as well as making careful choices about the people we connect with and the information we share. Participating in social networks without considering your online privacy is the equivalent of undressing with the curtains open, for all the world to see.

While each social network has its own specific privacy settings, most have options to hide content from users you aren’t connected to, as well as options to hide content from the web at large, perhaps the most useful trick is to simply post and connect responsibly.

If you think your boss won’t like what you have to say on Facebook, make your profile private and don’t accept his friend request. If you don’t want to block your grandmother, but you don’t want to offend her either, maybe it isn’t a good idea to post the photos from your trip to Vegas.

It all boils down to deciding what you’re willing to share, and taking steps to not cross the line you’ve set. If you want to connect to hundreds or thousands of other users, you’ll have to be mindful of the information you are allowing that mass of users to see. This means everything from email addresses and phone numbers to work history and family photos. If you don’t want the information to be available, DON’T SHARE IT ON A SOCIAL NETWORK.

As these types of websites gain even more massive popularity, the users have to treat them less like a free-for-all, and more like a real-life social setting, complete with all of its hang-ups and consequences.

 


 

Delete Files Effectively

Read time (bolded) – 4 minutes

Read time (comprehensive) 7 minutes

When you delete something, you want it gone. Whether it’s documents cluttering up your desktop, archived information from a job you haven’t had in years, or all-too-painful photos of you and your former flame, when you send something to the trash (or recycle bin), the idea is to get rid of it. Permanently.

Data, however, doesn’t just go away that easily.  It is, of course, for our own protection that files stay ready for restoration in trash cans and recycle bins, just in case we delete something accidently and it needs to be recovered. Emptying these refuse receptacles, though, doesn’t even do the job. Somewhere buried in your hard drive, those files are still around, accessible to anyone with the skills to extract them.

Because old, presumably deleted files could still be recovered, this presents a security risk to anyone getting rid of an old computer or hard drive. Any sensitive financial or personal information could be potentially recovered and used for malicious purposes.

There are, fortunately, ways to permanently delete information from a hard drive. Several programs exist to do just that, like Darik’s Boot and Nuke (DBAN), Kill Disk, and SDelete.

A wide variety of these disk-wiping programs exist, offering different functions and methods of data erasure.  The United States Computer Emergency Readiness Team (US-CERT) outlines several important steps for true erasure:

  • Secure Erase – standard programming in most hard drives, executable by disk erasure programs like the ones mentioned above.
  • Multiple Overwrites – new data to replace erased data, written as many as seven times over.
  • Random Data – using randomized data in the overwriting process to further hide patterns
  • Final Layer of Zeros – added security from a final layer of all zeros.

An additional precaution, if you are scrapping an entire computer, is to simply remove the hard drive after the secure erasure process. The drive can then be destroyed or discarded separately, further reducing the risk of it being recovered by someone with malicious intent.

 

We spend a great deal of effort protecting our data while it is in use with firewalls, encryption, password protection, and the like. This data is just as sensitive long after we’re done with it, and we need to act accordingly.

 


 

Real World Lessons for Online Interactions

Read Time (bolded) – 7 minutes
Read Time (comprehensive) – 12 minutes

The Internet can sometimes feel very removed from the real world. Avatars and user names create new identities; introverts can acquire thousands of friends. There is a (false) sense of anonymity and safety in communicating through a computer instead of on the phone or face to face.

Don’t be fooled though, plenty of our dealings on the web are still very much in the real world. Real information (and real money) is the lifeblood of the Internet. Despite endless hours of silly video, Flash games, and cat pictures, the Internet presents many of the same dangers as the real world. Let’s draw some parallels.

Lock Up The HouseYou wouldn’t just leave your front door wide open, or protect a garage full of valuables with some flimsy little chain latch. Treat your digital property the same way! This includes setting strong passwords (none of this “qwerty123” business!) and changing them regularly. General security includes, of course, anti-virus software and firewall protection, but it also means locking or logging out of a computer in a public place, and using some caution when browsing or emailing – always log out of your accounts. Always.

Don’t Believe Everything You Hear – The world is full of people trying to stretch the truth or spin information in their favor. The Internet is no exception – links that promise instant riches or huge rewards are usually scams.

The classic example is an email from some unfamiliar sender, claiming to be some deposed foreign ruler. If you provide your bank information and a small loan, you’ll be repaid many times over. This is an obvious scam (usually called a Nigerian or 419 scam), and most recognize it as such, but they don’t carry this discerning eye into other online activities.

Facebook links (from friends you rarely interact with) promising some shocking video or juicy piece of celebrity news are a sure-fire way to infect your computer with spyware and malware.

Just as you’ve learned to detect body language or tone of voice associated with dishonesty, you can learn to recognize this kind of content on the Internet. Just like your mother told you: if it sounds too good to be true, it probably is.

Don’t Take Candy From Strangers – Closely related to identifying online scams or malicious links, avoiding harmful downloads can be learned fairly easily. For email, simply stay away from attachments from unknown email addresses. While browsing the Internet, don’t download anything from a less-than-reputable website. Like the scams mentioned above, potentially harmful downloads will usually be accompanied by some falsified information. Learning how to identify these kinds of threats can save you a lot of trouble by protecting your information and your software.

Have Something to Fall Back On – With all of the potential threats out there, not to mention the bevy of things that could go wrong with your hardware, maintaining a collection of backup files is always a good idea. The more sensitive or important your information, the greater care you should take in ensuring its survival in the event of a computer catastrophe.

Whether you upload items to a server, burn dozens of CDs, or pile everything on to an external hard drive, it’s important to stash copies of your most valuable files out of harm’s way. When the time comes, you’ll be glad you did.

 

Imagine Internet browsing as a walk down a busy street. Plenty of the shops are well lit, seem safe, and have what you want. Even some of the less polished looking businesses might have some great items; maybe you can find just what you’re looking for in a place you’ve never been. Enjoy the element of discovery as you wander from place to place.

In between though, are scam artists and pickpockets. Charming raconteurs beckon you from seedy storefronts. Keep your head and move on with confidence. If an alley looks too dangerous, don’t walk down it.

 

 

 

 


 

How Anonymous Are You?

 

Read time (bolded) – 5 minutes

Read time (comprehensive) – 9 minutes

 

Surfing the Internet might feel like about the most anonymous thing you can do. If you aren’t logged into a social network, no one sees your name, your face, anything. It feels as though you’re free to peruse the web alone, with no one reading over your shoulder, no one keeping tabs.

Unfortunately this is far from the truth. Every time you make your way to a website, a certain amount of information is shared with that site. IP addresses, domain names, even recently viewed pages can be collected by websites and used to their advantage…unless you take steps to prevent it.

This is not to say that every website is collecting your information for malicious intent. In fact, it’s usually quite the opposite. Websites are collecting information for demographic studies, to map traffic patterns, or determine their most popular content. Most of the time they are trying to make the website better for you, the user.

There are enough exceptions, though, that anonymous web browsing definitely has its selling points. Phishers, keyloggers, spammers and all of their equally dreadful counterparts represent a real threat, or maybe you just don’t want to be part of any market research. Whatever your reasons, there are a handful of tactics to allow you and your web browsing to fly beneath the radar.

The first, and most basic way of masking your Internet identity is by way of proxy server. By surfing the web through a proxy, you use an IP address other than your own, like making a call from someone else’s phone number. Without the correct IP address, a website cannot determine your physical location. This can be useful for accessing content restricted in a certain region, preventing spyware from installing on your computer, or preventing the collection of certain demographic data.

Accessing a proxy server is usually as simple as finding a host online (there are entire websites dedicated to proxy hosting) and changing a few basic connection settings. All you need is an IP address and a port number from the proxy host you found online. To get set up, check out this quick “how to” list:

Internet Explorer

Firefox

Chrome

Safari

Taking a step beyond proxy servers, some browsers are even offering anonymous surfing, like Chrome’s Incognito Mode. When using a browser window in Incognito Mode, the browser itself is preventing websites from collecting sensitive information. Pages you view won’t show up in your browser history or search history. After you close the window, there’s not trace, not even cookies.

Internet Explorer 9 has a similar feature, a tool called “Do-Not-Track.” A pretty straightforward name with a pretty straightforward purpose, Do-Not-Track allows users to create a list of specific sites that they don’t want tracking them.

Firefox and Safari have private browsing modes too, they just aren’t quite as publicized.

Anonymous web surfing will help you defend against various online attackers, but its primary function is a matter of privacy. Advertisers may not be taking your money or hacking into your accounts, but they are surely collecting more information than most people would care for them to.

Browsing the Internet by way of proxy server, combined with your browser’s “private browsing” features, brings your security to the next level and masks your activity from information-farming advertisers.

Using these tactics in conjunction with firewalls, anti-virus software, and the ever-important ‘common sense’ approach to Internet use will create the best defense against the dangers lurking in the murkiest corners of the web.

 


 

Understanding Website Certificates

Read Time (bolded): 3 Minutes

Read Time (Comprehensive): 5 Minutes

The Internet can be a dangerous place. We’re constantly reminded to update our antivirus software, to maintain the firewall, to protect our identities at all costs.

Fortunately for the amateur web-surfer, a good deal of reputable websites are interested in your protection as well (it makes them look bad if someone steals your credit card number from their site).

This is done partly by website certificates. These certificates are required of any site that wishes to use an encrypted (secure) connection.

There are two simple ways to identify if a site is secure or not:

•      A closed padlock icon, either in the status bar at the bottom of your browser, or in the address bar at the top.

•      The URL begins with “https” instead of “http.”

Don’t be fooled though, clever phishers and attackers are not beyond inserting fake padlocks, even forging look-alike certificates. If you really need to verify the security of a site you are visiting, the certificates themselves can be checked.

By clicking on the padlock in browsers like Chrome, Internet Explorer, and Firefox, you can take a look at the certificate details. To verify the certificate’s authenticity, look at this information:

- First: Who issued the certificate? The issuer should be a certificate authority like VeriSign or Entrust (you can always search the name of the issuer if you’re at all unsure).

- Second: Who is the certificate issued to? The name on the certificate should be the organization that owns website (this is also information you can search for if something seems fishy).

- Third: What is the expiration date? If the expiration date on the certificate is passed, the certificate is no longer valid. Beware. Also, most certificates are only issued for one to two years. A certificate with an expiration date five years away just might be a fake.

This information will help you know which sites to trust, or at least how to check if a site is trustworthy. It’s never a bad idea to take a look at privacy policies, either.

As always, the best defense against online attackers is common sense. If a site doesn’t seem trustworthy, it probably isn’t.


 

What To Do With Old Tech?

Read time (bolded): 5 minutes

Read Time (comprehensive): 8 minutes

Old technology?

Well you know what they say about, “one man’s trash …”‘

One option is frequenting the numerous online buyback programs and trade-in services to sell your less than fresh technology.

According to an evaluation done by PC WorldeBay Instant Sale is great for smart phones and iPadsGazelle is the place for laptops, and if you are wanting to shed that Amazon tablet, surf no further than BuyBackWorld. Other sites come in as runners up, such as, BuyMyTronics, NextWorth, andYouRenew. Old stand-bys like Best Buy and RadioShack, don’t even warrant a second look.

Of course there are always eBay Auctions and Craigslist, where you could get anything from the retail value of the gadget to frustration induced headaches.

Maybe the money is not your top priority, or you would just rather exchange that iPad for a spot of philanthropic feeling, well there are a number ofcharitable organizations that would gratefully accept your discarded devices.

Even if your old computer, digital camera or computer accessories are broken, the National Cristina Foundation may be able to donate the gear to nonprofits. One group uses the donations to teach disadvantaged or disabled people marketable computer skills by fixing broke-down tech. Check cristina.org for a list of acceptable devices and shipping instructions.

Have a drawer full of old cell phones? Well, they may not be able to text-message or shoot video clips, but they can be refurbished enough to dial 911. The Wireless Foundation’s Call to Protect program takes all cell phones, batteries, chargers and other accessories–regardless of condition–refurbishes them, and provides them as emergency lifelines for survivors of domestic violence. Download prepaid postage at wirelessfoundation.org/CallToProtect.

Also keep in mind many retailers, such as Dell and Apple, offer discounts on new equipment if you trade in your old stuff… and if you really run out of options you can always pry the keys of your old keyboards to play Scrabble… but just so you know, you’ll need at least 12 “E” tiles – which means 12 keyboards.


 

HDD vs. SSD: the Battle for Memory Supremacy

Read Time (bolded): 6 Minutes

Read Time (comprehensive): 15 Minutes

Hard drives may very well be the most important component of any computer system. All the processing power in the world is useless without data to process. Storing information, be it music, photos, documents, or videos is a primary use of most personal computers.

We’ve seen hard drives grow and improve over the years, from archaic 100 megabyte, 2.5 inch drives released in 1991 to the multi-terabyte drives being manufactured today.

With all of this technological development, it was only a matter of time before some manufactures strayed away from the standard magnetic storage method used by most hard drives over the years.

Now we have a choice when selecting computer storage: standard hard disk (HDD) or the new kid – solid state. Let’s compare.

Solid state drives (SSD) have an awful lot going for them. First and foremost, they don’t have any moving parts. This means no mechanical arms, no rotating magnetic platters, nothing. From this, we can extrapolate a few important things:

  • No parts to make noise
  • No “fire-up” time
  • No parts to BREAK

Solid state drives are essentially large-scale flash memory cards, and without the mechanical complexity of a standard HDD they are simply more reliable. In fact, most of the advantages of an SSD can be boiled to its mechanical simplicity.

Because a solid state drive doesn’t have to read from a moving object, no movement needs to be initiated, drastically improving read times.

Without spinning plates and an internal motor, an SSD won’t start whirring or clicking. They are silent.

There are definitely advantages to the SSD. It’s lightweight, not susceptible to magnetic damage, it’s quiet, and it has fantastic random read speed. It’s not perfect though. There are still some serious downsides.

For pure capacity, a standard HDD is still the best bet. Samsung has a prototype 4TB HDD, and there are plenty of 2 and 3TB drives on the market. Most solid state drives top out around 256GB.

Another setback, though maybe not a serious one to most, are the reduced write speeds associated with solid state drives. While the drives may read much faster, a typical SSD will have a much slower write speed than a standard HDD. This may be a nonissue for day-to-day computing, but could be seriously agitating while trying to do write-intensive work like video encoding or graphic rendering.

Now the biggest problem of all, the major thing separating standard and solid state hard drives: price.

Newer technology is always more expensive that its standardized counterpart, but the gap between the HDD and the SSD is massive. $69.99 will buy you a 500GB portable HDD. That same price will only get you 32GB of internal hard drive with SSD. The divide only gets bigger. For a terabyte of internal storage, an HDD will cost anywhere from $59.99 to $179.99. The same amount of memory in a solid state: $3,750.00!

It’s still a tough call. Both the HDD and the SSD have their ups and downs, though solid state drives are surely the way of the future. For now, selecting a hard drive (write speeds and size availability aside) comes down to a very simple question: is the reliability of a solid state hard drive really worth the price?


 

Challenging Common Computer Myths

Read time (bolded): 5 minutes
Read Time (comprehensive): 15 minutes


Over the years, online security has become paramount for anyone with a computer and a way onto the web. To hold back the tide of maliciousness which permeates the Internet, there are a number of things that we can use to protect ourselves:

  • Firewall
  • Anti-virus software
  • Common sense

A firewall is a part of a computer system or network that is designed to block unauthorized access while permitting authorized communications. It’s installed on a network as a way to inhibit intruders while still allowing you to enjoy freedom to explore the web.

Anti-virus software prevents, detects and removes malware such as computer viruses, worms and trojan horses. There are many suites of sophisticated antivirus software on the market – look at BitDefender, Kaspersky, Webroot and Symantec antivirus software packages for the best, top-of-the-line protection one can get. As hackers refine the methods in which they write viruses, so too does antivirus software evolve to stay abreast of the latest in computer-crippling malware.

However, common sense is the most important – proceeding with caution on the web is largely a matter of common sense and taking security seriously.

With that out of the way, let’s discuss some common misconceptions about network security:

  • Is my anti-virus software 100% effective?
  • While this element is essential and important, nothing can protect you 100% from hacker attacks except a combination and intelligent use of the three elements discussed above.

  • Once antivirus software is installed on my computer, I don’t have to worry anymore – I can download whatever I want and I’ll still be safe, right?
  • Woah, not so fast cowboy. Best practices for surfing the web still apply, and software vendors should consistently provide you with updates to their security – make sure you stay in the know!

  • But, I don’t have any money! What would a hacker want to steal from me?
  • Hackers are after more than your bank account information – once they gain access to your computer via a virus or rootkit (a rootkit is a piece of malware that seeks to gain administrative control over your computer), they can use any information they can find on your computer – your address, phone number, social security number – to steal more than money… they can steal your identity! Also, a rootkit can enable a hacker to make attacks on others, from your computer.

These are just some of the most common misconceptions about network security. It’s not an issue to be taken lightly, and it certainly pays off to know as much as you can about how to keep your data safe! Becoming a victim of identity theft is as easy as letting your common sense lapse, or letting your guard down.


 

Color Printer Showdown – Inkjet vs. Laser

Read time (bolded): 2 minutes
Read time (comprehensive): 8-10 minutes


Of all aspects of the tech world, few are as incomprehensible as printers. If you’re in the market for a printer, how do you know what type to buy? If you know you want color, you’re in luck – nowadays there’s really only two types of color printers to consider. Let’s take a look at both and compare/contrast.

Inkjet Printers: These printers spray tiny ionized drops of ink onto a page to create an image. Almost all inkjet printers are color printers and print at a resolution of 300 dots per inch – newer and fancier models may print at a DPI above that. Inkjet printers excel at producing wide color ranges by mixing basic, primary colors together. For reproducible color saturation and vibrancy, inkjet cannot be beat.

  • Wide color range
  • True-to-life color reproducibility
  • Great for photographs and pictures
  • Cheaper up-front; more expensive long term
  • Less efficient

Laser Printers: Color laser printers are very versatile, as they use the same toner-based process as a b/w laser printer. These models work just like a copy machine: by shining a laser beam to make an image on a drum inside the printer; the drum is then coated in ‘toner’ so that only the electrically charged portions of the drum pick up ink. Via heat and pressure, the ink is then transferred from the drum to the paper. The advantages of laser printers are primarily their speed, although they also excel at producing crisp text in large page-volumes, which makes them perfect for business applications.

  • Fast and quiet
  • Crisp, readable text output
  • Dependable for high-volume printing
  • Not appropriate for photo printing
  • More expensive up-front; cheaper long term

 

How many Gs do you have? – 3g vs. 4g


Read time (bolded): 2 minutes
Read time (comprehensive): 10-15 minutes


Whether you’re using an iPad, Android phone or a laptop with a 3G card, with cell phone companies desperate to prove to every consumer that they have the ‘”fastest network in America’” (or anywhere!), and new forms of data transfer being invented seemingly overnight, it might make your head spin to try to figure out which phone, carrier and network has fastest data-transfer available for your mobile devices. Luckily for you, I’m here to help you sort it out!

First of all, the G stands for the word generation. There were once phones using 1G and 2G, yes, but this was before cell phones became ubiquitous, and before having the ‘fastest wireless network’ became important to telecom companies.

For trivia’s sake, you should know that 1G phones were the ‘brick’ style mobile phones, the first that were available anywhere, the ones that were larger than your wireless phone at home. 2G phones were the cell phones we remember, only before the advent of digital networks.

3G is most likely the first mobile phone standard any of us became familiar with, as it was the first standard to become a marketable term. With 3G (which was first unveiled in Japan, in 2001), the ability to transfer data wirelessly became very accessible due to solid wireless standards and digital networks. Suddenly people were doing very data-demanding things on their mobile phones, like watching TV, video chatting and streaming movie trailers.

And after 3G comes 4G. The fourth generation of wireless data transfer, with speeds that will blow your mind. The advantages of a speedier wireless network are clear:
Web pages load faster
Video is smoother and more consistent
• More reliable data transfer thanks to concatenated FEC
• Greater quality of multimedia

But what is 4G? What makes it tick? This is a difficult question to answer, as no matter what we call 4G, the underlying technology is not the same – for example, Sprint uses a technology called WiMax, while Verizon wireless uses a technology called Long Term Evolution, or LTE.

Due to these divergent approaches to 4G , the specifications for 4G have not yet been standardized, and 4G service is only currently available in big cities. Because of the lack of a golden standard, it’s very difficult to generalize about 4G, it’s speed or its advantages over 3G.

Regardless of the technology beneath the surface, the primary goal of 4G is speed, plain and simple. With 3G, we’re lucky to experience speeds of up to 2mbps, which is pretty respectable. However, 4G boasts (depending on the carrier) speeds anywhere from 10Mbps to 1Gbps, while still utilizing the same bandwidth as 3G (5-20 MHz).

The result of graduating to a new wireless standard is not a marketing trick, nor just an annoyance. With these more sophisticated wireless standards will come smarter phones, much richer and more ‘on-demand’ multimedia, not to mention greater possibilities for what we use our mobile devices for.