The HKEx has been attacked by hackers before, but not on such a large scale.

HK bourse website hacked Wednesday

港交所新聞網站遭黑客攻擊

The Hong Kong Stock Exchange (HKEx) halted trading of several listed companies Wednesday afternoon citing "technical difficulties" with its news Web site likely caused by a hacking attack, Caixin.com reported.

The news portal, which publishes listed companies' filings and financial results, became inaccessible around midday Wednesday. Seven Hong Kong-listed stocks and one bond, all of which released price-sensitive information earlier that day, were suspended from trading at approximately 1:30 p.m. Wednesday.

HKEx's other systems were not affected and trading in its securities and derivatives markets continued to operate normally, officials at the bourse said in a news release.

A preliminary investigation by the stock exchange's technical department attributed problem to hacking. But the source and purpose of the attack were not yet clear, HKEx CEO Charles Li said at a briefing Wednesday.

"I want to emphasize that [hacking] is the current assessment," Li said. "Hopefully we can bring it [the site] back online as soon as we can."

The HKEx has been attacked by hackers before, but not on such a large scale, Li said.

Officials at the exchange used another site, www.bulletinboard.hk, to publish issuers' filings during Wednesday's outage.

The news site had resumed operation Thursday morning, but a spokesperson at the exchange said the bulletin board will continue operation in parallel with the HKEx news Web site Thursday.

由于香港證券交易所的新聞發布網站疑似受到黑客攻擊，發生技術故障，港交所周三將幾只股票債券停牌，新浪科技報道稱。

周三（8月10日）中午，供上市公司發布通告及業績文件的“披露易”網站發生故障，用戶無法讀取披露文件。當日公布過股價敏感性信息的七只港股和一只債券當天下午約1點半起停牌。

港交所的其他系統并未受到黑客攻擊，其股票及衍生品交易也正常運行，港交所在聲明中稱。

香港交易所行政總裁李小加在記者會上表示，港交所技術部門初步評估是因為黑客入侵，但不清楚攻擊來源和目的。

李小加強調故障來源于黑客攻擊僅是當前評估結果，并表示將盡快維修披露易網站系統。

李小加介紹說港交所此前也曾受到黑客攻擊，但規模均未超過本次。

昨天披露易網站發生故障時，港交所啟用了臨時報告板(www.bulletinboard.hk).

周四上午港交所發聲明宣布披露易重啟服務。但港交所新聞發言人稱該報告板周四全天仍會與披露易一同雙軌運行。