The real objective of computer security is to protect theft or destruction of information and property stored in the computer systems, so that it remains properly accessible and useful for its final users. Computer security can be achieved by following a few steps that are mostly centered around following a strict security policy that does not take into account the software used; or follow a security policy that has mechanisms that can’t be trusted; or adopting a security policy and software validated by trail and error; or just follow a security policy with trustworthy mechanisms. While the former 2 can be considered as approach affected by computer insecurity, the latter 2 can be considered as approach affected by computer security. While the first 2 approaches are impractical, of the next 2 approaches the 3rd one is expensive which leaves only the 4th approach as practical easy to adopt.
 
Some other approaches include restricted access, thereby even if a cyber attack happens the restricted access does not allow the attacker to get into other sections. Also partitioning the system into smaller components, opens up the possibility to use a variety of techniques to prove correctness of subsystems. Computer security is centered around CIA short for Confidentiality, Integrity, and Authentication. Confidentiality refers to the information that is private and cannot be access by all; Integrity refers to protecting the information against unauthorized changes that go undetected by authorized users; Authentication refers to access to the genuine users.
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Twitter, a social networking and micro-blogging service established in 2006 allows its users to send and read messages known as tweets. Tweets are nothing but posts up to 140 characters that can be displayed on the author's profile page and delivered to the author's subscribers/followers. However to avoid unnecessary attention senders can restrict delivery of these tweets to a select few in their circle of friends or, by default allow everyone open access. Users can also follow a lists of authors instead of individual authors. The biggest advantage of Twitter is that users can send and receive tweets not just via the Twitter website, Short Message Service (SMS) but also through external applications  such as phones.  While Twitter is free of cost, accessing it through SMS may result in fee from the phone service provider.

The website with more than 100 million users worldwide has still not made profit but after the end of 2010 financial year is expected to make profits in the range of over a billion dollars progressively. Sometimes called the "SMS of the Internet" has emerged as one of the most popular social networking/ blogging platforms. Its simplistic concept allows famous personalities, (most famous celebrities such Brittany Spears, Lindsay Lohan, Amitabh Bachchan, Ajay Devgn, Priyanka Chopra, Sachin Tendulkar, Sanjeev Kapoor are users of Twitter) to send brief messages about what they are doing to their loyal followers so as to clear the air of any ambiguity/controversy about them. Twitter as such can be helpful to not just famous personalities to communicate but also with large corporations and small businesses. Read the rest of this entry »

How to Promote a Website

If running a small business selling anything such as pictures, paintings, wood toys and other art products through the internet, sellers have to opt for several steps to increase their online visibility. Accordingly sellers have to opt for a few things that go well in promoting a website beside having a catalog and online shopping cart in their website.

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The micro-blogging site Twitter.com has become a rage practically with people from all walks of life using it to convey their feelings in few words in what are called as Tweets, which are short updates of a maximum of 140 characters that tell people what they are up to. The website where its’ all about following and being followed, Twitter has emerged as a tool for people to enhance their online presence. Although Twitter was meant to authentically answer the question, “What are you doing?” it has moved far beyond that with people using it to share stories, link to photos, promote content, break news, and a whole lot more. As such Twitter has now become an important tool for marketing tool for professionals to promote themselves or business through internet using the social media domain. However there are few things that people need to take care of or keep in mind before trying to make maximum utilization of Twitter.com. This will evidently help them expand there following and ultimately help them to market themselves. These are

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Begonia Infosys had been writing about the various privacy violations by Facebook. that has caused people lot of headache. Looks like the shouting by BIS and numerous others websites, bloggers and eminent tech honchos on the internet about the need to rectify the privacy violations on Facebook have finally borne fruit.  BIS had even published some time back a blog titled  Social Networking, Facebook and Infringement of Privacy on this very issue. As such after enduring weeks of criticism over his company's latest privacy changes, Facebook CEO Mark Zuckerberg today offered a mea culpa in an op-ed column in the Washington Post. But some industry observers doubt that the tweaks he outlined will be enough to satisfy users' concerns. Social networking giant Facebook admitted Monday that it had made mistakes in its privacy policies and promised to roll out new tools that would make it easier for its 400 million users to control their personal data.

Mark Zuckerberg, the 26-year-old billionaire founder of the second most popular site on the internet, made the admission in a column that appeared in the Washington Post on Monday amid growing user anger sparked by a string of privacy glitches. "The biggest message we have heard recently is that people want easier control over their information," Mark Zuckerberg further wrote "Simply put, many of you thought our controls were too complex. Our intention was to give you lots of granular controls; but that may not have been what many of you wanted." Mark Zuckerberg also said that the company would introduce simpler privacy settings within weeks, as well as a way to block all third-party services. Facebook has often come in for criticism of its privacy policy, whose default setting is to allow large amounts of personal data to be viewed and searched by the public. Criticism grew following the introduction of new features recently that extended Facebook buttons across numerous internet sites and could have exposed users' browsing habits to others. Read the rest of this entry »