Here are some haunting pictures of Leningrad during the siege, superimposed over a picture of the same location today. I know most of these locations, and some of them I passed by daily. I can hardly believe what the city went through during the war:

Ligovskiy Prospekt Metro

Walking on Nevskiy Prospekt
Click for the whole series
Well, it was a cyber attack:
In January of 2009 the world witnessed the third successful cyber attack against a country. The target was the small country of Kyrgyzstan. …The attackers focused on the three of the four Internet service providers. They launched a distributed denial of service attack traffic and quickly overwhelmed the three and disrupting all Internet communications.
The attack seems to be politically motivated and is the latest example of geopolitical disputes being fought with cyber weapons. Cyber Intelligence Analysts stated that attacks were launched to disrupt demands that leaders halt plans to prohibit access to an airbase for the US military in its war in Afghanistan. The analysts went on to say the Russian officials want nothing more than the base closed as soon as possible.
This is starting to be a problem, and is only going to get worse. China has gotten in on the action as well. Cyberwarfare - a new discipline.