Hello!! please check the video!!
after enable applock feature and open sophos mobile app, then click applock tab, authenticator windows opened, then click home button to return the home, then go back sophos app, then few times exist opportunity can click the applock feature activate button. if click fast the button applolck protection is disabled!!
So i hope to fix this vunerability like a applock feature can lock sophos it self's or trying other method.