Adobe Systems Inc. has found itself in the midst of a public relations maelstrom of the sort once reserved only for Microsoft Corp., as security experts chastise the company for not moving fast enough to address a critical security hole in its products even as third-party software makers offer makeshift fixes for the flaw. On Feb. 19, experts at Shadowserver.org, a volunteer-led security group, let the world know that bad guys were attacking an unpatched security flaw in Adobe Acrobat and Reader to break into systems when users opened booby-trapped .PDF files. The Shadowserver guys said one way to mitigate this threat was to disable the rendering of Javascript within these programs. Later that day, Adobe released its own advisory, which acknowledged that the flaw existed in all supported versions of its products, and on all operating systems. The company said it planned to ship an update to fix the