{keyword}' Union All Select Null,null,null,null,null,null,null,null From Msysaccessobjects-- Udhz -

Sources:[1] microsoft.com[2] portswigger.net[3] geeksforgeeks.org[4] sqlinjection.net[5] owasp.org[6] owasp.org

The best way to stop these attacks is to never "glue" user input directly into your database queries. Instead, use: Sources:[1] microsoft

Comments out the rest of the original query so it doesn't cause a syntax error [1, 5]. How to Prevent It: Sources:[1] microsoft

These can often detect and block common patterns like UNION ALL SELECT before they reach your server. Sources:[1] microsoft