As soon as the byte codes of the agent change, the old user signature becomes invalid.

代理的字节代码一变更，旧的用户签名就变成无效的了。

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Attempt to use either an invalid user id or an invalid password to connect.

尝试使用无效的用户ID或无效的密码进行连接。

youdao

Invalid user mapping - The local or remote user id or password has changed.

无效用户映射——本地或远程用户ID或密码已改变。

youdao

In another bypass, they insert a wire into a silicon cover for an LED light that blinks red when the user enters an invalid code.

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What does a user see if he enters an invalid email address during registration?

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