Hackers

Going through my log files I keep seeing more and more:

Code they are using:

<?php /* aJ99ID */ echo("di"."Ki"); die("di"."Ki"); /* aJ99ID */ ?>

I noticed all diferent ones, I know these are hacks just wondering if anyone knows how to fix this?

Thanks in advance

Using 6.1.4

dolphin can be easily attacked by hackers due to which they working very fast on v7 which has more security

http://www.boonex.com/unity/blog/entry/Dolphin_Security_Roundup

Does this mean that Dolphin is not vulnerable currently?

Thanks for your help.

Heres a list of ip's from last couple of days that tried:

deny from 110.45.144.164
deny from 86.109.108.66
deny from 218.38.243.71
deny from 65.46.254.122
deny from 91.184.2.75
deny from 89.107.184.60
deny from 66.219.99.129
deny from 210.118.170.17
deny from 195.56.55.217
deny from 72.47.234.212
deny from 85.214.53.125
deny from 72.29.68.196
deny from 61.109.245.179
deny from 89.107.184.60
deny from 87.230.23.105
deny from 85.119.154.129
deny from 216.119.103.12
deny from 207.44.232.81
deny from 91.121.210.42
deny from 210.100.220.126
deny from 196.40.83.75
deny from 202.124.245.42
deny from 77.221.130.2
deny from 81.2.227.113
deny from 195.226.112.50
deny from 193.239.248.148
deny from 62.26.219.92
deny from 77.232.66.198
deny from 218.1.64.133
deny from 195.34.78.110
deny from 93.174.0.65
deny from 209.200.8.89
deny from 220.69.22.141
deny from 66.175.122.228
deny from 217.147.29.190
deny from 222.239.76.25
deny from 221.157.225.65
deny from 115.86.111.4
deny from 91.195.124.16
deny from 116.36.213.166
deny from 207.182.143.50
deny from 216.151.134.36
deny from 200.93.147.154
deny from 58.227.193.198
deny from 210.98.146.166
deny from 60.48.88.185
deny from 219.85.63.226
deny from 61.250.85.200
deny from 212.150.52.114
deny from 194.8.74.229
deny from 81.175.71.121
deny from 217.199.222.19
deny from 122.116.178.20

will keep adding more probably every day......