Howard Bornstein wrote:
I use an effective method of timing out software that isn't vulnerableWhy is that not "vulnerable to turning back the system clock" ?
to turning back the system date and doesn't rely on a data file. I
check a system directory that is updated by access to the web (e.g. a
directory that's a repository for internet cookies). In most companies
these days, people access the interenet every day. Thus, there is
almost always a file that's been created in that directory each day. I
check the creation date of the latest file as my check file for the
current date and compare that against the timeout date.
If I set my system clock to a year ago, then each time I access the web, I'll create my cookie files with dates in 2004.
-- Alex Tweedly http://www.tweedly.net
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