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Secure Your Data Before It's Too Late


By Martin Teetz
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August 15, 2003 —  (Page 1 of 3)
Most companies have their core business data stored in relational databases. And most companies have database systems in place that support advanced security and encryption technology. But do the majority of database users take advantage of the security features built into their systems?

I would guess that more than 70 percent of database installations that have advanced security features available are not using them or are using only a very small portion of them. Imagine if all customer contacts get into the hands of the competition because an administrator took a database backup copy with him when he changed jobs. Or if a hacker could create a virus that tries to read and steal data from your relational databases.

There are various possible methods which data thieves can use, such as when a hacker attacks physical database files in order to see or alter information. This occurs in the case of mobile client systems, for example, when a data thief pretends to be an authorized user of a system, a database or an application. For this purpose, there is software for the generation and automatic use of password lists. Often a simple phone call from the "user service" suffices, with a direct request for password and caller ID. Or an attacker uses an existing database connection via a network, which has been set up by an authorized user (hijacking). A sniffer intercepts uncoded information while it is being transmitted via a network.

Most database vendors have reacted to increased security needs and have released product versions that include highly increased security. Now it is up to the user to choose the right product offering for his needs and, most of all, use the powerful security technology offered.

Responsibility of administrators.Administrators have the largest responsibility in securing database systems. They need to leverage the built-in security technology of the deployed database products. They have to enable the database's security technology for central data stores, and for the peripheral databases they should standardize on secure databases, instead of insecure desktop database products.



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