Sony Ericsson warns that from 1 January 2005 all Symbian applications distributed through Sony Ericsson consumer channels must be Symbian Signed. Developers are required to make sure their applications have been properly tested and provided with digital signing prior to distribution.
Symbian Signed is an industry-endorsed application signing program that promotes best practice in Symbian OS content and application development, publicly launched on 18 May 2004. The program tests applications against industry-agreed criteria in support of requirements from network operators and mobile manufacturers.
The program also delivers developer authentication and anti-tamper security for Symbian OS applications. The signing means that the application has passed the test criteria and is digitally signed ("sealed") to guarantee the source and integrity of the application. The aim is to increase the maturity among developers, the general quality of applications coming to market and the trust among consumers for Symbian OS applications.
Developers who have achieved Symbian Signed have the right to use the "For Symbian OS" logo.