check a domain's SPF (Sender Policy Framework) record, löst includes gleich mit auf | include:_spf.example.com = TXT-DNS-record von _spf-subdomain (dig ... txt) | SPF-Test mit gutem Log (redirect...) http://vamsoft.com/support/tools/spf-policy-tester
Android app that warns you about threats like fake base stations (IMSI catchers), user tracking and over-the-air updates | IMSI Detector only: search f-droid repo for "imsi"; works on all android devices even CM
"...a toolset for a wide range of organizations and people that want to improve their safety and security on the Internet. Using Tor can help you anonymize web browsing and publishing, instant messaging, IRC, SSH, ..."
The Netalyzr tests your Internet connection for signs of trouble. Understand your connectivity through a detailed report of any performance and security issues.
Hier können Sie nicht nur Ihre öffentliche IP-Adresse anzeigen lassen, Sie erhalten auch alle wichtigen Infos und Tests zum aktuellen Internetzugang. Über die Themen IT-Sicherheit, TCP/IP Grundlagen und anonymes Surfen gibt es Hintergrundinfos, aktuelle Tips sowie ein Hilfe- und Diskussionsforum.
Problem: Malcolm, Zoe, Kaylee, Simon, and River all work together on the same web development team. They are avid Twitter users and want a similar way to broadcast quick messages and updates to everyone on their team. Since these messages may contain confidential information, the team doesn't want them published to their public Twitter timelines or to any followers who are not part of the team. Solution: GroupTweet allows Malcolm and the gang to send messages via Twitter that are instantly broadcasted privately to only the team members.