Ukrainian defense, foreign ministries' websites taken down in attack, as predicted by US officials ahead of full-blown invasion, to include airstrikes and push to Kyiv

White House's chief cyber official says this week's DDoS attacks had 'limited impact' but possible Moscow laying the groundwork for more destructive cyber incursions

Representatives of various government offices reported to meet to discuss possibility that thousands will seek to immigrate to Israel if Russia invades

Moscow says London's accusation that Ukrainian politicians are colluding to form replacement administration is 'more evidence NATO, led by Anglo-Saxons, are escalating tensions'

Former KGB agent died in London in 2006 after drinking tea laced with radioactive material; UK charging 3rd suspect in 2018 nerve agent attack on ex-Russian agent Sergei Skripal

David S. suspected of sending documents to Russian intelligence; security specialist: 'A reminder of how much effort Russians put into trying to find out what West is up to'

Claiming Russian military chased away Royal Navy ship with shots and bombs, deputy FM says those who test Moscow's resolve and strength 'are taking high risk'

Moscow says that HMS Defender had ignored a notice against intrusion into what it claims as Russian territorial waters near Crimea

Foreign Office says actions include 'cyber intrusions, election interference, and military buildup in illegally annexed Crimea'; move comes as US expels 10 Russian diplomats

Spy passed names of hundreds of MI6 agents to KGB; escaped London jail with rope ladder; said he hated Nazis 'because of my background. I was a British subject; I was half-Jewish'