In HTTP user agent header of Android, what does the "U" mean?

Question

I'm trying to implement a HTTP user agent header parser.

I'm curious to know the meaning of "U" in HTTP user agent header of Android.

This is a sample HTTP user agent header of Android:

Mozilla/5.0 (Linux; U; Android 4.0.2; ko-kr; Galaxy Nexus Build/ICL53F) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30

Does anyone know about it?

Answer 1

U for strong security..................

http://www.useragentstring.com/Android%20Webkit%20Browser_id_18032.php

Security values:

• N for no security

• U for strong security

• I for weak security