Fake or Counterfeit Chip has been a thing for a very long time. So chip shortage didn't create this problem.
More people are discovering it because they are desperate for chips and they have to take a bet from unknown supplier. Normally you get like 10 box of solid chip with 1 box that are either counterfeit or fake. Now may be two or three.
Some Manufacture are willing to bet because even if the chip cost 5x or 10x as much, it is still relatively small increase from their total BOM. Think Car as an extreme example, who cares if you pay $100 for chips that used to cost you $10 or even $5 when your car is worth $10K+? Not to mention your operation cost losses when you have no cars to sell.
More people are discovering it because they are desperate for chips and they have to take a bet from unknown supplier. Normally you get like 10 box of solid chip with 1 box that are either counterfeit or fake. Now may be two or three.
Some Manufacture are willing to bet because even if the chip cost 5x or 10x as much, it is still relatively small increase from their total BOM. Think Car as an extreme example, who cares if you pay $100 for chips that used to cost you $10 or even $5 when your car is worth $10K+? Not to mention your operation cost losses when you have no cars to sell.