That arrested FSB-agent is accused of being a US-spy... which means somebody compromised him.

[DetlefK]

http://talkingpointsmemo.com/edblog/wow-it-gets-bigger

According to the independent newspaper Novaya Gazeta, the FSB believes Sergei Mikhailov tipped off U.S. officials to information about Vladimir Fomenko and his server rental company “King Servers,” which the American cybersecurity company ThreatConnect identified last September as “an information nexus” that was used by hackers suspected of working for Russian state security in cyberattacks.

...

But this immediately poses the question: if Mikhailov was a US asset, how was he compromised? Did the information put out by US intelligence somehow lead to his exposure? Without putting too fine a point on it, a number of close advisors to President Trump are being scrutinized for ties to Russia. Some of them participated in the intelligence briefings the President receives.

[GliderGuider]

1. Mike Flynn, National Security Advisor

is the odds-on favorite.

[atreides1]

5. I was thiking the same thing!

It was reported that Flynn had called a Russian official, sometime in December! The FBI was monitoring the Russian, but have reported that there was nothing illicit about the conversation!

This is Comey's FBI...an organization that possibly has more Russian assets like Robert Hanssen!

[yardwork]

2. Great.

[Denzil_DC]

3. There are no doubt a number of ways he could have been compromised.

We may never know for sure.

But the fact that people are even in the position of realistically wondering whether close advisers to the US president may be implicated says it all.

[dalton99a]

4. Our government has been compromised and the president himself is a Russian agent.

[madaboutharry]

6. Kick