> For the complete documentation index, see [llms.txt](https://http3-explained.haxx.se/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://http3-explained.haxx.se/de/why-quic/why-secure.md).

# Sicherheit

QUIC ist immer sicher. Es gibt keine Klartext-Version des Protokolls, daher involviert der Verbindungsaufbau einer QUIC Verbindung Kryptographie und Sicherheit mit TLS 1.3. Wie vorhergehend angemerkt, verhindert dies eine Ossifikation sowie andere Blockierungen und spezielle Handhabung - und sorgt dafür, dass QUIC alle sicheren Eigenschaften von HTTPS hat, die User des Webs erwarten und sich wünschen.

Es gibt nur wenige initiale Handshake-Pakete, die im Klaren geschickt werden, bevor die Verschlüsselungsprotokolle verhandelt wurden.


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