Chinese job recruiting platform Boss Zhipin announced on Wednesday it resumed new user registration after nearly one year when Chinese Cybersecurity Review Office launched security investigation in July 2021 against the company and two other online platforms.

"Over the past year, Boss Zhipin has cooperated with the network security investigation, seriously coped with the security issues found during the process and carried out a comprehensive rectification," said a statement released by the company on social media platform Weibo.

"Upon the approval by the Chinese Cybersecurity Review Office, the company resumed new user registration today," the company said, noting that it will take effective measures to ensure the security of platform facilities and big data, and safeguard national security.

Yunmanman and Huochebang, two online truck logistics platforms under the Full Truck Alliance, also announced they resumed new user registration on Wednesday.

On July 5, 2021, the Chinese cybersecurity regulator announced it launched an investigation on the three platforms to address national data security risks, maintain national security and protect public interests. New user registration had been blocked since then.

The investigation came just days after the regulator launched a cybersecurity investigation over Chinese ride-hailing giant Didi Chuxing on July 2, 2021.

Boss Zhipin's owner Kanzhun, Didi and Full Truck Alliance are all US-listed firms. Going public in overseas stock markets further increases data security risks, industrial observers have warned.

China has enhanced protection of personal data and stepped up efforts to shore up cybersecurity over recent years. Alongside the rapid expansion of the country's internet industry during the decades, concerns about cyber security and personal data are increasing, and people are calling for more sound regulation on the industry.