By Fred Weir
Security experts are confused about who is behind the far-reaching cyber attacks, as both Kremlin foes and officials are among those targeted.
Russia’s biggest social network and its top opposition newspaper have been knocked out by massive hacker attacks over the past week, leading some nervous bloggers to suggest that security services may be testing techniques for shutting down the country’s freewheeling Internet in the event of a crisis.
Read more on www.csmonitor.com