I got this lockdown as well. This Kalunga hack seems to started recently. I am wondering how hackers got my iCloud id and password. 2fa enabled. Live alone so I don't share computer. iCloud password is unique to iCloud only. Strong password. Always on latest update so I have latest security patches. iOS devices are not jailbroked. Only have applications from big companies like Google, Microsoft or Amazon on my mac, and somehow they still got my id/password combo. Only time I don't have my mac with me is when I sent it to Apple repair center. There is either a security breach or an inside job.
