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The 2010 CWE/SANS Top 25 Most Dangerous Programming Errors is a list of the most widespread and critical programming errors that can lead to serious software vulnerabilities. They are often easy to find, and easy to exploit. They are dangerous because they will frequently allow attackers to completely take over the software, steal data, or prevent the software from working at all.

Syntax Tolerance MQL, which has JSON syntax, is not so hard to write, but sometimes you can make minor syntax mistakes that renders your query invalid. The query editor automatically tries to clean up such syntax errors behind the scene before running the query, so that you can still make mistakes, such as forgetting quotation marks and commas (illustrated in screenshot below), and your query still runs most of the time. You can also tell the query editor to explicitly clean up your query by clicking the Clean Up button. It will quote unquoted strings and property names, insert missing commas, and remove trailing commas. (Tip: the keyboard shortcut Shift-Ctrl-Enter will clean up your query explicitly and then run it.)