It is estimated that the state of California paid out more than $30 billion in fraudulent COVID related unemployment benefits. At this point these systems can be massively cheated when made easy (ie., no in-person application required). It has been estimated the 35% of unemployment claims are fraudulent[1]. Not just a few people unfortunately (or maybe just a few doing a huge amount of fraud, but fraud is a big problem).
[1] https://edd.ca.gov/siteassets/files/unemployment/pdf/fraud-i...