Vietnam stock market reports first cyberattack

Brokerage suspended pending corrective measures but regulators see no contagion risk

HANOI – Financial institutions are not at risk from the first cyberattack on a Vietnamese brokerage, the market regulator said on Wednesday, after the country’s third-largest securities firm was suspended after it was targeted over the weekend.

VNDirect, Vietnam’s third largest broker in terms of transactions handled according to the Ho Chi Minh City exchange, has been disconnected from the trading system since Monday.

“We do not see risk of contagion,” Pham Hong Son, the vice chairman of Vietnam’s State Securities Commission (SSC), told Reuters, adding that no other brokers had been affected.

VNDirect declined to comment on when it would resume trading. It also declined to say how much damage it had sustained in the attack.

In a note published on Monday, the broker said its “entire system was attacked by an international organisation” on Sunday, making its trading platform temporarily inaccessible, but with no impact on customers’ assets or data. The company’s shares have fallen by nearly 4% since the start of the week.

Asked about the attacker, the SSC declined to comment.

Son said there was no need to take additional action to reduce the cyberattack’s impact on trading, adding that investors could use accounts at other securities firms.

On Monday, transaction volumes on the HCMC bourse fell by 10%, according to LSEG, as investors using VNDirect could not trade. The benchmark index also fell 1.1% on Monday.

“Despite notable rises in some tickers, the spotlight of the day was on VNDirect’s cybersecurity breach, casting a shadow over market sentiment,” Mirae Asset Securities, another broker said in a note.