You may contact me via Phone, Signal or WhatsApp, if you think it's appropriate. Be aware that I'll add everyone who abuses this option permanently to my block list.
If you'r a recruiter interested in hiring me, you should contact me via Xing or LinkedIn (just search for me there). That allows me to perform some background checks to ensure that you'r a serious person. Unfortunately this becomes necessary because of the huge amount of data grabbers and trolls at the professional network platforms.