This is such a common misconception. A legal check does not have to be printed on any kind of "security" paper. The only requirements are that it is an unconditional order to pay an amount, and that it has sufficient information to identify where the money comes from (account number, routing number, etc).
There are plenty of common stories in the banking world of people writing checks on ridiculous things such as tissue paper, various food items, etc, and requiring the bank to process it. And unless the bank doesn't mind losing the customer, they do, because it is perfectly legal.
The "security" features are mostly there as a convenience to the bank, as obviously it is not easy to process a check written on a kleenex.
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This is such a common misconception. A legal check does not have to be printed on any kind of "security" paper. The only requirements are that it is an unconditional order to pay an amount, and that it has sufficient information to identify where the money comes from (account number, routing number, etc). There are plenty of common stories in the banking world of people writing checks on ridiculous things such as tissue paper, various food items, etc, and requiring the bank to process it. And unless the bank doesn't mind losing the customer, they do, because it is perfectly legal. The "security" features are mostly there as a convenience to the bank, as obviously it is not easy to process a check written on a kleenex.