The Night the Internet Caught a Cold: How a One-in-Seven Rule Brought Down a Tenth of the Net
Tech History — Saturday, October 3, 2026 The Night the Internet Caught a Cold: How a One-in-Seven Rule Brought Down a Tenth of the Net The Morris worm of November 1988, rebuilt from the people who took it apart GB GadgetGlow Bytes Editorial Published October 3, 2026 · 9 min read · How we work The ratio at the heart of the worm: one in every seven “already infected” answers was ignored. Graphic: GadgetGlow Bytes Most computer disasters arrive with a bang. This one arrived as a slight slowdown. On the evening of Wednesday, November 2, 1988, administrators at universities and research labs began to notice that their Unix machines were sluggish, then sluggish in a way that made no sense, then so overloaded that they could not be logged into at all. The network those machines belonged to connected roughly 60,000 computers at academic, corporate and government research sites, according to the opening of the MIT analysis that became the standard account of the event. By the next mo...