Hong Kong Exchanges and Clearing Limited (HKEX)

Hong Kong Stock Exchange experienced its website being hacked while it halted derivatives trading to fix unrelated software bugs.

A technical bug was found in a vendor’s trading software for derivative financial products, which forced the exchange to suspend the trading of futures and options

Trading resumed after the exchange returned to using an older version of the software without the bug, the organization stated.

Businessman Tse Man-lai, who was behind the 2011 cyberattack, was subsequently convicted and jailed for nine months.

Source: https://www.scmp.com/business/banking-finance/article/3025994/hong-kong-stock-exchange-said-its-website-was-hacked-while

"id": "HON22310423",
"linkid": "hkex",
"type": "Cyber Attack",
"date": "09/2019",
"severity": "60",
"impact": "2",
"explanation": "Attack limited on finance or reputation"