It appears that many Directory authorities are compromised and taken down, This is a horrendous security risk, Who has done it and Why? There are currently 9 directory authorities. More than half of the authorities must be online and they must reach a consensus on the current state of the network every hour for them to create and publish the hourly networkstatus-consensus (the list of all the known relays). If some of the directory authorities were compromised and taken offline then the remaining DAs will continue publishing the consensus and the network will continue operating normally. The one performance impact will be seen by new clients. When they first try connecting to the network (download and launch Tor Browser for the first time) they will try connecting to one of the directory authorities and download the networkstatus consensus from it. If some of the directory authorities are offline, it may take some time for each connection to timeout (while the client connects to an unavailable authority), but eventually the client will reach an operational authority and it will then be able to use the Tor network as usual. If more than 5 DAs are taken offline then this is a horrendously large operation and the necessary corrective actions must be taken to ensure the network remains operational.
A new client have tried Tor for the first time on Dec 20 2014, and it took more than 20 minutes to connect to an online directory authority. How many directory authorities are down? Is there any information why so many directory authorities are down? Following please find the partial list of directory authorities that appear to be down and up:
18.104.22.168 appear to be down
22.214.171.124 appear to be down
126.96.36.199 appear to be down
188.8.131.52 appear to be down
184.108.40.206 appear to down
220.127.116.11 appear to be up
Please provide as much information as possible because this appear to be a substantial security risk.