hyderabad a filedestroying computer worm timed to become active on friday caused lessthanexpected damage in asia and europe but did leave its mark on government networks and small businesses in hyderabad experts however said as many as 80000 computer systems in india and about a million across the world were hit by the mass mailing wormgiven names such as kamasutra blackmail mywife grewit wrecks computers using the windows operating system and can corrupt documents with file formats like dmp doc mdbmde pdf psdppt pps rar xls and zip in hyderabad the ap governments local area network lan and the hyderabad stock exchange hse proved vulnerable to the worm scores of viruses invaded the former network managed by andhra pradesh technology services apts throwing access to its database out of gear sources said aps lan network was down since friday morningsecurity analysts worked to salvage the data and secure the network though some antivirus solutions were used it was the improper implementation of the solution that led to network breakdown sources saidthe hse was another victim of the virus although its officials tried to downplay the damage our network was attacked at about 330 pm by which time we were through with the days trading the impact has been minimal and we are taking measures to secure the local area network hse executive director sarveshwar reddy told toihowever sources said hse was attacked prenoon following which the network collapsed and normal trading couldnt take place the exchanges website was dysfunctional on friday a leading call centre hcl technologies was also reportedly attacked but officials werent available for commentthat apart individual users small and medium businesses and smalltime internet service providers isps were badly hit by the feb 3 virusmost of these small isps are now running on linux software since the windowsbased operating system has collapsedthose who were aware of the possible attack secured their networks but smalltime businesses soho smallofficehomeoffice companies have been hit badly zoom technologies managing director m h noble saidthe larger corporates came out unscathed in hyderabad with no cases of network breakdown being reported companies like satyam intelligroup genpact dell and hsbc had erected secure gateways to counter the attackaccording to satyam computer systems vp network systems t srinivas during a 15hour period on friday the number of suspected viruses increased by a phenomenal 20000 on normal days the number would be in the hundreds or a few thousands