不告诉别人密码啊，登录界面不要设置成自动登录，另外如果怕QQ被盗的话可以在手机上打开设备锁。
1、下载最新版的手机QQ，登陆后单击右下角的按钮，然后选择设置界面进入；
/iknow-pic.cdn.bcebos.com/30adcbef76094b36b57e7f02a8cc7cd98c109d74"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/30adcbef76094b36b57e7f02a8cc7cd98c109d74?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/30adcbef76094b36b57e7f02a8cc7cd98c109d74"/>
2、进入设置界面后，里面有一个设备锁与安全的选项，单击进入；
/iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3de8131dd8b9feef01f3b297959"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3de8131dd8b9feef01f3b297959?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3de8131dd8b9feef01f3b297959"/>
3、进入后就会让你手机号和验证信息，进行验证后你就可以进行所有设备的控制了，只要你的手机不丢，别人就不会登陆到你的QQ。
/iknow-pic.cdn.bcebos.com/f7246b600c33874406f348935a0fd9f9d72aa02f"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/f7246b600c33874406f348935a0fd9f9d72aa02f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/f7246b600c33874406f348935a0fd9f9d72aa02f"/>