A leading security expert believes that Adobe's business will begin to suffer if it does not make immediate steps to fix its security flaws, with Microsoft's Silverlight a potential beneficiary.
"The constantly growing call to move away from Adobe means the company will feel the impact on its business and cause it to invest in security," said Schouwenberg.
"While it's clearly the market leader, it lacks one critical advantage - there are good mainstream alternatives.
"As I see it, Adobe's in the same situation as Microsoft some seven years ago. However, Microsoft's main competitor wasn't as mature then as Adobe's is right now. Adobe has a number of competitors in a few areas - There's competition for PDF readers/editors and a number are emerging as viable replacements to Adobe Acrobat / Reader."
It's Flash that's perhaps Adobe's most famous product, and although there isn't a direct competitor, Microsoft and its Silverlight rich internet application could begin to gain more traction if faith in Adobe drops.
"Competition for Flash is less clear. Because the Flash format is still proprietary it's pretty much impossible for others to make Flash players that can hold their own against Adobe's own Flash player," added Schouwenber.
"There are open source alternatives but their functionality is limited. And it doesn't solve the issue of creating and editing Flash files.
"The most likely competition for Adobe is going to come from Microsoft. Silverlight hasn't made a real breakthrough so far, but if Adobe (Flash) security issues persist this is undoubtedly going to open a window of opportunity for Silverlight."
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