Beware of Botnets
A new kind of threat called botnets also called as software robots, or networks of “slave” PCs whose owners do not know their machines have been infected, have become both more prevalent and sophisticated.
By planting a piece of software on an unguarded PC, criminals are able to assemble large networks of machines to carry out tasks for them, such as launching attacks on other internet users.
PCs that are part of botnets, some of which span 1million or more machines, have become harder to identify and root out.
Botnets have also become more dangerous as their controllers have learnt how to repurpose the slave networks to carry out different tasks. A second big new threat that has become notable this year has been the commandeering of legitimate websites and e-mail accounts to spread malicious software. Rogue software is used to scrutinise public websites and “inject” code into those that are found vulnerable, so that later visitors to the sites can be infected.
The use of the internet to exploit vulnerabilities in millions of PCs first emerged as a significant threat in 2001, after an outbreak of fast-spreading computer viruses and worms. Those threats were largely thwarted after a concerted effort by Microsoft and other software makers to plug flaws in their code and after anti-virus software became more widely used.
However, the prospect of making large amounts of money by stealing sensitive information from millions of users, such as their passwords or financial data, has led to a new and more insidious outbreak of mass internet attacks.
Adnan Patal
Executive: Fraud Management Services


