My question is always, Did an H1B visa employee do this? Before I retired I had to monitor everything they did.
A flaw like this may have been intentional via the NSA...................
My experience with H1Bs is that they don't have any ethic for excellence. Their ethic is based on "good enough" or "slip one by". It is an ethos ingrained in them since childhood.
They take pride in their ability to "get over" and slide through life. Unless someone is looking over their shoulders, you can bet the task with be accomplished will minimal thought and care.