No doubt there is black magic even Surah Falaq says it

وَمِن شَرِّ النَّفَّاثَاتِ فِي الْعُقَدِ

And from the evil of those who blow on knots

So black magic is a magic or witchcraft which people do to harm others and there is white magic which doesn’t harm anyone but used to entertain people.
But in Islam both types of magic, both it’s learning and teaching to others is haram and the one who does it is a cursed person and will see severe punishment by Allah (swt) therefore there are many ways shown in Hadith that if anyone feels he would be trapped in black magic should recite Surah Falaq and Sura Nas and Ayatal Kursi whenever one wants to come out from his house. Give Sadaqah every day and ask Refuge from Allah (swt) from such evil things.

Please don’t be misguided by professionals who’s job is to mislead innocent people on the name of Taveez etc. They just misuse people’s weaknesses specially women. Just rely on God in each and every affairs of your day to day life and have Wasila of Ahlulbait (a.s).