Syria has reportedly cut off all access to the Internet according to Akami and web monitoring firm Renesys.

FORBES: Syria Shuts Off Internet: But Can Assad Really Block Information Flow?

On Monday, Renesys published its full list of countries and territories at various levels of Internet shutdown risk.

FORBES: These Are The 61 Countries Most Vulnerable To An Internet Shutdown

But the cable, which has been in place since 2011, has shown the first signs of activity, Renesys said.

BBC: 'Curious' Cuban net cable has activated, researchers say

Jim Cowie, of Renesys, told the BBC there was not enough information to tell what had caused the latest blackout.

BBC: Syria 'cut off from the internet'

Renesys Corp, which monitors the pathways of the internet, said the storm caused major outages in New Jersey and New York.

BBC: Storm Sandy: Data hubs damage concerns

Meanwhile, the Internet is back up again in Syria after being down for more than eight hours Wednesday, according to the Renesys Corp.

CNN: Execution video surfaces in Syria

But Renesys' data is a strong indicator that the cable is beginning to show signs of life - be it over five years since its original inception.

BBC: 'Curious' Cuban net cable has activated, researchers say

"In the past week, our global monitoring system has picked up indications that this cable has finally been activated, although in a rather curious way, " wrote Doug Madory, Renesys' senior researcher.

BBC: 'Curious' Cuban net cable has activated, researchers say

According to internet and network analysis firm Renesys, the cable lit up with activity last week with data flowing through it between Telefonica and the nation's state telecom company, Empresa de Telecomunicaciones de Cuba S.A. (ETECSA).

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