As usual, be cautious when you open attachments from untrusted sources and make sure your antivirus software is up to date.

通常情况下在打开不明来源的附件时要小心谨慎，同时要确保反病毒软件病毒库的更新。

youdao

Open your Ubuntu software sources and install web content control.

打开你的Ubuntu软件源，并安装网络内容控制。

youdao

If you don't want those, instead of running "sudo apt-get upgrade", open Synaptic, upgrade Pidgin only and then remove the GetDeb repository (from Software Sources).

如果你不希望它这么做，不要输入“sudo apt - get upgrade”；运行新立得(Synaptic)并单独升级Pidgin，然后再(从软件源)移除getdeb库。

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