Every virus cannot be detected by a signature-based antivirus largely for the following reasons:

* If an attacker has changed the signature of a virus, any signature-based antivirus will not be able to find the virus.
* Any new virus will not be captured by the antivirus, as it will not be on the list in the antivirus database.
* If the virus is not in the database of a signature-based antivirus, it will be virtually impossible for the antivirus to detect that virus.
* If the mutation engine of a polymorphic virus is generating a new encrypted code, this changes the signature of the virus. Therefore, polymorphic viruses cannot be detected by a signature-based antivirus.

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Twitter accounts hacked : Barack Obama, Britney etc on the list

According to twitter, a micro blogging site, 33 twitter accounts were compromised and false and inappropriate messages were posted online. Hacked accounts include prominent twitter sources like President-elect Barack Obama,

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Error Messages

Error Messages Overview Think about these questions. * Why are Error Conditions and Error Messages a security problem? * What’s wrong with error conditions? * Wouldn’t an administrator want the

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critical SQL injection (vulnerability) on Myanmar Online Advertisement

PlanetCreator.Net’s Security Team member $@T0R! reported another critical SQL injection (vulnerability) on Myanmar Online Advertisement URL : http://www.myanmaradv.com/ SQL injection is a code injection technique that exploits a security vulnerability

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