| Jitsi | Black VPN | TOR |
| Signal | CyberGhost VPN | Kismet (sniff WiFi) |
| ChatSecure | Tunnel Bear VPN | AirCrack-ng (auditing wireless networks) |
| Silent Circle | Express VPN | IPVanish VPN |
| mSpy | Hola VPN (access geo-restricted websites) | WireShark (GUI-based packet sniffing and analyzer tool) |
| Telegram | Threema | AirSnort (recovers WLAN encryption keys) |
| Proton | DMARC (Domain-based Message Authentication, Reporting & Conformance) |