-2563) Order By 1# Today

: This is a dummy value. Attackers often use a value that likely doesn't exist in the database (like a negative ID) to ensure the subsequent "injected" part of the command is what the database focuses on.

: This is used to close a parenthesis that might exist in the original, legitimate query's code. -2563) ORDER BY 1#

: Someone using pre-made scripts to see if they can break into a site. : This is a dummy value

: Someone checking if a site is secure.

: In many SQL dialects (like MySQL), the hash symbol marks the start of a comment. This tells the database to ignore the rest of the original, "real" code that followed the injection point, preventing syntax errors that would stop the attack from working. Why You Might See This : Someone using pre-made scripts to see if

: Tools like Burp Suite or sqlmap automatically probe websites for these vulnerabilities.