I am going to have a presentation, can you please make my script sounds smoothly?

Our group is going to talk about South Korea Banking networks attack

This 2013 cyber attack known as "Dark Seoul" that virtually shut down three South Korean television stations and a bank as well as affiliated ATMs and mobile payment systems.

Computer networks stopped working entirely at three banks - Shinhan, Nonghyup and Jeju - However, Another financial institution, Woori Bank in Seoul, reported it was able to fend off a hacking attack about the same time.

The banks that were affected reported problems with a variety of systems, including Internet banking, ATMs and telecommunication services, and some branches stayed open late because of the slowdown.

Experts believe the South Korea has been previously targeted by hackers from the North Korea. They suspect that North Korean hackers honed their skills in China and were operating there.it was an attempt to test the South's computer defences in preparation for potential future conflicts.

Thank you!