Recently i found alot of "UNION Pattern like SQL injection found" on protector module. What is this mean? is it harm?

user
Guests

IP AGENTS
79.116.185.239 Firefox/3.0.1
125.162.53.177 Firefox/2.0.0.12
79.117.37.152 Firefox/3.0.1
90.27.42.175 IE 7.0
84.22.47.118 IE 6.0
77.242.22.74 IE 6.0
And more..

Description
UNION Pattern like SQL injection found. (-58 UNION SELECT 1,2,version(),4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,[i]21,22,23,24,25,26,27,28,29,30,31--)[/i]

extra info, i use Protector v2.52

Updated extra info, just now my IP Banned from Protector from my 1st post. i has refresh my IP to get back to XOOPS site, and this is my 2nd post. i think the Description i posted got me banned from protector.

**WARNING: Do not quote this message expecially the Description. it will get your IP Banned.

See this:
http://en.wikipedia.org/wiki/SQL_injection

Looks to me like someone trying to do something naughty with your site. Might be a hacking attempt.

Protector has helped you. I would recommend upgrading to to the latest v3.x of the module. Google search for "peak xoops" and you will find Gijoe's site from where you can download it.

JAVesey, thank you for your information.. really a useful tips!