Pearson could supply opportunities to supply feedback or take part in surveys, including surveys evaluating Pearson merchandise, providers or sites. Its supply code indicated that the worm was alleged to verify whether or not a target host was already contaminated; in that case, the worm would negotiate so that either the present an infection or the brand new infector would terminate. However, due to a supposed flaw in the code, many new copies did not terminate. As a outcome, an infected machine quickly became burdened with many copies of the worm, all busily attempting to unfold the infection. Thus, the first observable effect was serious degradation in efficiency of affected machines.

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