Do not read this if you are looking for answers or even insight.
Two underwater cables cut on a stormy night on the Mediterranean- that was easy to explain; probably just a couple of ships anchoring offshore until it was safe to enter harbor. High winds, dragging anchors, makes sense to me- I've been there myself in small craft (but without the bit about crippling communications to entire nations).
Another underwater data and telecommunications cable damaged the following day, just an unlikely and unfortunate coincidence.
Two more in the following week brings the total to five damaged cables. Internet and telecom service to large parts of the Middle East and Indian subcontinent, you don't have to be Oliver Stone to start thinking that maybe this isn't a coincidence.
Let's start with two questions: who has the ability to sabotage the cables and who profits from the damage? Since we don't know anything about what actually caused the damage (and won't until repairs are made, if ever) it is hard to say what skills are needed, but I bet a seaworthy fishing boat and crew would be a good start. Add a little Google reconnaissance and current navigational charts you should be ready to wreak havoc on telecommunications. Draggers accidentally damage all kinds of stuff on the sea floor regularly, imagine what they could do if they wanted to damage things. That doesn't narrow the possible candidates much. So, back to the other question- who benefits? I guess that depends on motive. There is more than enough political, religious and social turmoil throughout the region to provide dozens of possibilities- so that doesn't help narrow it down much, either.
This leaves wild speculation, so I say we blame the Canadians. Sure, they seem nice...