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Think about the two qualities that a virus, or any sort of parasitic replicator, demands of a friendly medium, the two qualities that make cellular machinery so friendly towards parasitic DNA, and that make computers so friendly towards computer viruses. These qualities are, firstly, a readiness to replicate information accurately, perhaps with some mistakes that are subsequently reproduced accurately; and, secondly, a readiness to obey instructions encoded in the information so replicated.

Richard Dawkins#39

Biology

About this quote

What does it mean?
Parasitic replicators like viruses and computer viruses require a medium ready to replicate information accurately and obey encoded instructions.
In plain terms
Viruses need a host to copy info and follow instructions easily.
What can you take from it?
Infectious systems require receptive hosts to spread.

Where it applies

  • studying viruses
  • cybersecurity
  • evolutionary biology

Putting it to work

  • secure systems against exploits
  • understand host dynamics

Questions to consider

  • What makes a system vulnerable to infection?
  • How does information spread?

Another view

The comparison between biological and digital viruses may oversimplify their mechanisms.

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