- en.wikipedia.org SIGAINTSIGAINT was a Tor hidden service offering secure email services. According to its FAQ page, its web interface used SquirrelMail which does not rely on JavaScript.
- youtube.com watchSn0wF0x Darknet Show S01E28.5 2015 - Sigaint - Encrypt your E-Mails with GPG.Yayınlandı20 Ağu 2016
- securityaffairs.com 36292/hacking/sigaint-hacked-…SIGAINT is one of the web email service hosted on the TOR network that is used to send messages preserving user’s anonymity.
- theregister.com 2017/03/02/sigaint_goes_dark/Sigaint, one of the largest dark web email providers, is approaching its third week of unavailability with still no clear signs about what's happening to the service.
- progsoft.net en/software/sigaintSIGAINT alternatives and competitors for Web, Windows, Mac, iPad, Android, IOS Yandex.Mail, Kolab Now, Enigmail, MsgSafe.io.
- alternativeto.net software/sigaint/There are more than 10 alternatives to SIGAINT, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Android apps.
- sugggest.com software/sigaintOne of the key features that set SIGAINT apart was its use of cryptography and the Tor network to provide anonymous communications.
- turkhackteam.org konular/gizli-e-posta-gonderme-…Gizli e-posta gönderme servisi(SIGAINT) Deep Web | Jvo. Konbuyu başlatan Jvo. Başlangıç tarihi 11 Kas 2015.