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UK flooded with forged stamps despite using barcodes — to prevent just that
(www.bleepingcomputer.com)
This is a most excellent place for technology news and articles.
Are the bar codes really to prevent forgery? Or some other purpose? I'd never heard of counterfeit stamps before. It would be like counterfeiting one dollar bills.
I believe counterfeit stamps is always a problem but never been discussed publicly, though I can't deny the barcode could be used for other purposes like tracking internally.
And you're right at counterfeiting 1 dollar bills analogy. People can just print and mail it at a lower than what real stamp cost, sell it to unsuspicious people and earn the difference.