On the Tor-based e-mail service SIGAINT, a post has been published which has warned users that it has become a target of a suspected intelligence service attack. They claim that the attack had deployed 70 malicious servers.
SIGAINT also stated that their infrastructure had been under attacks also but that the attackers were unable to impact the SIGAINT infrastructure.
The website sigaint.org states the address of the Tor website where SIGAINT is found. According to the manager, the alleged intelligence service attack tried to change this address, so that Man-in-the-middle attacks could be carried out on unaware users.
Please stay vigilant and aware, and use the SIGAINT.org website to get the official domain.