: In MySQL, this character marks the rest of the query as a comment, effectively "breaking" any remaining original code that might cause the attack to fail. Why are you seeing this?
If you found this in your website's , search queries , or form submissions , it likely means an automated bot or a person was scanning your site for security holes. How to protect your content: -1697 UNION ALL SELECT 34#
: These can block common "UNION ALL" patterns before they ever reach your database. : In MySQL, this character marks the rest
: This is a dummy value. By using a negative or non-existent ID, an attacker forces the original database query to return no results. How to protect your content: : These can
To prevent these types of attacks, developers should never insert user input directly into SQL queries. Instead, you should use: