There are indications that the attackers in the coming days attempts are going to do to the Tor network flat. To who it goes to is not clear, but would the Tor administrators have become obsolete, that the attack will focus on the so-called directory authorities.
According to the administrators want attackers the Tor-network to turn off by focusing on servers to which the links in the network to manage. This so-called directory authorities, which contain the information about all relays in the network, such as location and the used keys. If attackers are these servers offline get they can the Tor traffic to disrupt. Were they the servers, however, are in management, then they can, for example, to redirect the traffic. For example, to users through a specific exit node to lead to malware, as has happened before.
Who is behind the possible attack is not clear. The administrators of the Tor network here give no further information about. Do several governments attempts to of anonymous internet users that are using Tor browsing to find out. So did Russia recently a tender to crack Tor security.
The administrators of the Tor network, say steps to take to users to keep safe, but here, there was no further information given. On the Tor blog promise to the administrators to their users to keep.