![Photo / Supplied](https://www.nzherald.co.nz/resizer/v2/2PAQVNMRYVLA2SR2LP22IA3TVM.jpg?auth=5253374c445c409d591cec78841db75bd2983c268fc33f9dcbda7d1aad92a8b0&width=16&height=3&quality=70&smart=true)
Herald morning quiz: January 18
The Cavendish is the most common commercial variety of what fruit? Photo / Getty Images
![Photo / Supplied](https://www.nzherald.co.nz/resizer/v2/2PAQVNMRYVLA2SR2LP22IA3TVM.jpg?auth=5253374c445c409d591cec78841db75bd2983c268fc33f9dcbda7d1aad92a8b0&width=16&height=3&quality=70&smart=true)
AdvertisementAdvertise with NZME.
The Cavendish is the most common commercial variety of what fruit? Photo / Getty Images
The issue is believed to have been caused by cybersecurity firm CrowdStrike, and has affected transport, flights, banks and supermarkets around the world. Video / CNBC