Hackers use Y2K bug 
      as a smokescreen 
    
  
    
      Bill Goodwin reports
    
  
    
      @ Computerweekly, © 1999 Reed Business Information Limited 
      
    
  
  
    
       
    
  
  
    
      Security experts warn that cyber-criminals 
      will exploit the millennium bug as a cover for hacking and virus attacks.
    
  
  Businesses should brace themselves for an outbreak of sophisticated computer 
    viruses as the year 2000 approaches, computer security experts warned last 
    week.
  A new generation of viruses that cause havoc by re-setting the central clocks 
    of mainframes and PCs could strike before the end of the year, IT security 
    firm mi2g claimed.
  Disgruntled 
  The warning comes amid rising concern among some IT managers that cyber-criminals 
    or disgruntled staff could exploit the millennium bug as cover for hacking 
    or virus attacks.
  "Companies could be hit by thousands of viruses. They cannot assume 
    it will be business as normal," said Martyn Emery, director of year 2000 
    consulting firm Corporation 2000.
  "It may be that companies will have to disable their e-mail systems 
    for the first seven days of the New Year," he added.
  DK Matai, managing director of mi2g said the company has already shown 
    that it is technically possible to write a virus that can attack the internal 
    clock - one of the most vulnerable parts of a computer system.
  An attack on a computer system that is not year 2000 compliant could lead 
    to a serious malfunction, causing loss of data and damaging businesses, he 
    warned.
  Even when systems are Y2K compliant, moving a clock forward will cause software 
    licences, passwords, user accounts and files to fail.
  Stopped dead 
  In one test, the production line of a major car manufacturer ground to a 
    halt when the clock was rolled forward to January 2000. The robotics systems 
    stopped dead with no way to recover them, said Matai.
  Although many organisations are highly aware of IT security, the internal 
    clock remains a vulnerable part of most computer systems.
  There are no off-the-shelf packages to protect the internal clock. Companies 
    would have to develop their own software to monitor clocks and issue alerts 
    when anything was changed, Matai warned.