Fixing security vulnerabilities silently is possible at Apple Computer too, says security researcher Tom Ferris when releasing information about several unpatched OS X flaws at his Web site.

Solution:
This issue was silently fixed by Apple in update 10.4.6.

http://docs.info.apple.com/article.html?artnum=303411

says Mr. Ferris while disclosing details about Apple OS X 10.4.5 .tiff “LZWDecodeVector ()” Heap Overflow issue at ‘sp-x2′ advisory.

Marc Bevand started thread Microsoft silently fixes security vulnerabilities at Dailydave recently.