As this happened 40 years ago, it's possible the Austrian is no longer alive.
It's also possible he wasn't even Austrian at all, although to be honest, no matter now many details were changed in the story, if any of it was true, they should be able to make a reasonable guess who the actual person was, so I suspect that in any case, they wouldn't leak this as a story until after the person had died.
- "It's also possible he wasn't even Austrian at all",
It's possible he wasn't in the semiconductor business at all, and this entire story was a counterintelligence ruse to cause the adversary to spend resources scrutinizing their chip import pipeline, diverting attention from the real CIA sabotage which was happening elsewhere. Or: for the adversary to distrust, and voluntarily limit their use of, chips which were actually genuine and perfectly fine.
It's also possible he wasn't even Austrian at all, although to be honest, no matter now many details were changed in the story, if any of it was true, they should be able to make a reasonable guess who the actual person was, so I suspect that in any case, they wouldn't leak this as a story until after the person had died.