Israeli site Ynetnews, the English version of the major daily Yedioth Ahronoth, was hacked this morning by Pro-Palestinian cyberactivists. Is the Gaza conflict to be the centre of a hackers' war? Read more...

The police have arrested the student suspected of hacking into Sarah Palin's inbox on 16 September. Our Observer, an internet security expert, explains why you should be wary of webmail. Read more...