A scareware programme known as ‘Mac Defender’ is currently causing an increasing number of Mac users woe by demanding payment to remove viruses it claims to have found on their machines. The programme appears to automatically download to unprotected machines, exploiting the default ‘open files after download’ setting of most web browsers. Although the user must provide an administrator name and password to install the bogus software, a ‘significant number’ of users seem to have done just that. The software then autoruns, makes out like its scanning [...]

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