CFDs are a leverage product and can involve a significant risk of loss. Trading CFDs may not be suitable for all, therefore you should ensure that you understand the risks involved and take into account your individual circumstances.
Trader's Glossary

What is Black Swan Event?

Coined by Nassim Nicholas Taleb, the term refers to surprise events that have large knock-on effects. The idea being that these outlier events have historically had a disproportionate influence on global affairs and are nearly impossible to foresee.