Search for person "Holga" returned 2 results

Usable end-to-end security with Delta Chat and Chatmail

• Sicherheit Henny-Brenner-Saal
• 43 min
• 2025-09-19
• 13
• Holga
Datenspuren 2025

Delta Chat messenger

unlocking the potential of e-mail and the web

• Bits & Bäume
• 19 min
• 2023-08-18
• 566
• holga
Chaos Communication Camp 2023