SAN FRANCISCO (AP) — About a half-hour past midnight Friday morning in Egypt, the Internet went dead.
Almost simultaneously, the handful of companies that pipe the Internet into and out of Egypt went dark as protesters were gearing up for a fresh round of demonstrations calling for the end of President Hosni Mubarak's nearly 30-year rule, experts said.
Egypt has apparently done what many technologists thought was unthinkable for any country with a major Internet economy: It unplugged itself entirely from the Internet to try and silence dissent.
Experts say it's unlikely that what's happened in Egypt could happen in the United States because the U.S. has numerous Internet providers and ways of connecting to the Internet. Coordinating a simultaneous shutdown would be a massive undertaking.
"It can't happen here," said Jim Cowie, the chief technology officer and a co-founder of Renesys, a network security firm in Manchester, N.H., that studies Internet disruptions. "How many people would you have to call to shut down the U.S. Internet? Hundreds, thousands maybe? We have enough Internet here that we can have our own Internet. If you cut it off, that leads to a philosophical question: Who got cut off from the Internet, us or the rest of the world?"
In fact, there are few countries anywhere with all their central Internet connections in one place or so few places that they can be severed at the same time. But the idea of a single "kill switch" to turn the Internet on and off has seduced some American lawmakers, who have pushed for the power to shutter the Internet in a national emergency.
The Internet blackout in Egypt shows that a country with strong control over its Internet providers apparently can force all of them to pull their plugs at once, something that Cowie called "almost entirely unprecedented in Internet history."
The outage sets the stage for blowback from the international community and investors. It also sets a precedent for other countries grappling with paralyzing political protests — though censoring the Internet and tampering with traffic to quash protests is nothing new.
China has long restricted what its people can see online and received renewed scrutiny for the practice when Internet search leader Google Inc. proclaimed a year ago that it would stop censoring its search results in China.
In 2009, Iran disrupted Internet service to try to curb protests over disputed elections. And two years before that, Burma's Internet was crippled when military leaders apparently took the drastic step of physically disconnecting primary communications links in major cities, a tactic that was foiled by activists armed with cell phones and satellite links.
Computer experts say what sets Egypt's action apart is that the entire country was disconnected in an apparently coordinated effort, and that all manner of devices are affected, from mobile phones to laptops. It seems, though, that satellite phones would not be affected.
"Iran never took down any significant portion of their Internet connection — they knew their economy and the markets are dependent on Internet activity," Cowie said.