The world's largest software maker said in a statement that it will offer a monthly "Microsoft Security Update" newsletter to "help all users protect their computers."

The "SQL Slammer" worm, which slowed Internet traffic worldwide at the end of January, targeted corporate computer servers running Microsoft's SQL (pronounced "sequel") but did not directly infect or damage personal computers at homes and businesses.

Redmond, Washington-based Microsoft, whose Windows operating system runs on virtually all of the world's PCs, made computer security its top priority as part of its year-old Trustworthy Computing initiative.

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