A computer virus can be considered as computer program which can harm your computer whenever it is executed. Computer viruses are of different types like

• Worms
• Trojan Horse
• Spy ware
• Root kit
• Ad ware

Etc

A virus is spread from computer to computer by means of e-mails, CDs, pen drives etc. A virus can also be transmitted over network an d can damage all the computers over the network Viruses are sometimes confused with worms and Trojan horses, which are technically different. A worm can exploit security vulnerabilities to spread itself automatically to other computers through networks, while a Trojan horse is a program that appears harmless but hides malicious functions. Worms and Trojan horses, like viruses, may harm a computer system's data or performance. Some viruses and other malware have symptoms noticeable to the computer user, but many are surreptitious or simply do nothing to call attention to them. Some viruses do nothing beyond reproducing themselves.

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Credits- http://en.wikipedia.org

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When Infosys Technologies, India's second-largest IT firm, hired paramilitary troops to protect its sprawling headquarters in Bangalore, some observers might have thought they had gone overboard.

But since the Mumbai attacks last year, software exporters have bolstered security due to concerns that militants might target their headquarters as symbols of the country's economic success and to deter foreign investors.

Foremost among those seeking to hire well-armed paramilitary troops are companies in India's Silicon Valley, Bangalore, the nerve centre of the nation's $60 billion outsourcing industry that runs services from software coding to managing computer networks and call centers.

"India's IT firms are the flag-bearers of the country's thriving knowledge economy. This makes them 'high economic-value' targets with a global identity," said Manoj Vohra, director of research at the Economist Intelligence Unit's India division.

"Any assault on them will not only hurt India's commercial interests, but will also make the message travel faster globally."

News from Yahoo India

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